{"source":"polymarket","id":"882591","ticker":"massachusetts-democratic-senate-primary-margin-of-victory","slug":"massachusetts-democratic-senate-primary-margin-of-victory","title":"Massachusetts Democratic Senate Primary Margin of Victory","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/massachusetts-democratic-senate-primary-winner-fbf55jTM3zXE.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/massachusetts-democratic-senate-primary-winner-fbf55jTM3zXE.png","active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":2791.23396,"volume_24hr":1642.549282,"volume_24h_change":null,"normalized_vol_24hr":20.613054275512695,"normalized_volume":14.329791069030762,"liquidity":20380.78038,"open_interest":1184.7724439999997,"categories":["Politics","Elections"],"tags":[{"id":"100425","slug":"margin","label":"Margin"},{"id":"100199","slug":"senate-elections","label":"Senate"},{"id":"102289","slug":"midterms","label":"Midterms"},{"id":"2","slug":"politics","label":"Politics"},{"id":"144","slug":"elections","label":"Elections"},{"id":"264","slug":"primaries","label":"Primaries"},{"id":"105875","slug":"midtermmov","label":"Midterm MOV"},{"id":"1101","slug":"us-presidential-election","label":"US Election"},{"id":"1518","slug":"massachusetts","label":"massachusetts"},{"id":"105208","slug":"september-1-primaries","label":"September 1 Primaries"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Other","top_outcome_probability":0.5,"top_outcome_prob_24h_change":0.0,"top_outcome_volume_24h_change":0.0,"updated_at":"2026-08-28T21:59:51.934406Z","fetched_at":"2026-08-28T21:59:51.934406Z","added_at":"2026-08-20T21:55:48.318549Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory","chart_24h":[329.875638,400.155638,436.455638,436.455638,344.37230600000004,344.37230600000004,344.37230600000004,344.37230600000004,344.37230600000004,344.37230600000004,372.37230600000004,372.37230600000004,372.37230600000004,372.37230600000004,162.372306,709.615032,709.615032,709.615032,709.615032,757.29641,757.29641,809.059785,809.059785,809.059785,809.059785,1602.009785,1650.241588,1650.241588,1642.549282],"markets":[{"source":"polymarket","id":"3751958","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-25-30","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 25–30%?","group_item_title":"Markey 25–30%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.21,0.79],"probability":0.21,"spread":0.06,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":137.801508,"volume_24hr":104.846152,"prob_24h_change":-0.13499999999999998,"volume_24h_change":104.846152,"normalized_vol_24hr":8.2244234085083,"normalized_volume":7.139673233032227,"liquidity":379.2196,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-25-30","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.32,0.375,0.325,0.435,0.425,0.42,0.415,0.415,0.4,0.395,0.375,0.35,0.33,0.41,0.4,0.39,0.4,0.4,0.4,0.38,0.4,0.39,0.13,0.29,0.295,0.305]},{"source":"polymarket","id":"3751959","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-30-35","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 30–35%?","group_item_title":"Markey 30–35%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.2,0.8],"probability":0.2,"spread":0.04,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":640.4488859999999,"volume_24hr":151.49,"prob_24h_change":0.13499999999999998,"volume_24h_change":59.40666800000001,"normalized_vol_24hr":9.563091278076172,"normalized_volume":12.257856369018555,"liquidity":292.2281,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-30-35","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.09,0.085,0.12,0.12,0.12,0.12,0.12,0.12,0.115,0.12,0.07,0.12,0.11,0.1,0.07,0.11,0.11,0.125,0.125,0.21,0.2,0.19,0.185]},{"source":"polymarket","id":"3751957","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-20-25","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 20–25%?","group_item_title":"Markey 20–25%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.195,0.805],"probability":0.195,"spread":0.13,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":246.639077,"volume_24hr":168.52565099999998,"prob_24h_change":-0.22,"volume_24h_change":168.52565099999998,"normalized_vol_24hr":9.970264434814453,"normalized_volume":8.913786888122559,"liquidity":309.6829,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-20-25","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.43,0.48,0.445,0.32,0.435,0.32,0.325,0.33,0.455,0.445,0.44,0.425,0.44,0.4,0.245,0.215,0.205,0.2,0.2,0.195,0.195,0.19,0.18,0.18,0.21,0.215,0.21]},{"source":"polymarket","id":"3751955","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-10-15","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 10–15%?","group_item_title":"Markey 10–15%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.185,0.815],"probability":0.185,"spread":0.03,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":172.54,"volume_24hr":156.54,"prob_24h_change":-0.15500000000000003,"volume_24h_change":156.54,"normalized_vol_24hr":9.687448501586914,"normalized_volume":7.800865173339844,"liquidity":8775.2496,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-10-15","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.32,0.355,0.335,0.325,0.435,0.39,0.245,0.245,0.43,0.42,0.405,0.395,0.345,0.235,0.135,0.135,0.13,0.12,0.12,0.145,0.145,0.145,0.145,0.16,0.145,0.145]},{"source":"polymarket","id":"3751956","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-15-20","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 15–20%?","group_item_title":"Markey 15–20%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.18,0.82],"probability":0.18,"spread":0.12,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":518.1283880000001,"volume_24hr":212.471378,"prob_24h_change":0.06000000000000001,"volume_24h_change":-25.32092800000001,"normalized_vol_24hr":10.885802268981934,"normalized_volume":11.468513488769531,"liquidity":535.7511,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-15-20","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.23,0.225,0.215,0.205,0.2,0.2,0.2,0.2,0.2,0.085,0.06,0.055,0.05,0.16,0.24,0.23,0.22,0.22,0.205,0.135,0.195,0.195,0.185]},{"source":"polymarket","id":"3751952","event_id":"882591","slug":"will-seth-moulton-win-the-massachusetts-democratic-senate-primary-by-less-than-5","question":"Will Seth Moulton win the Massachusetts Democratic Senate primary by less than 5%?","group_item_title":"Moulton <5%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-seth-moulton-be-the-democratic-nominee-for-senate-in-massachusetts-rxRmK5ytj79r.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-seth-moulton-be-the-democratic-nominee-for-senate-in-massachusetts-rxRmK5ytj79r.jpg","outcomes":["Yes","No"],"outcome_prices":[0.09,0.91],"probability":0.09,"spread":0.14,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":166.48000000000002,"volume_24hr":150.48,"prob_24h_change":-0.24,"volume_24h_change":150.48,"normalized_vol_24hr":9.537824630737305,"normalized_volume":7.693689823150635,"liquidity":348.6604,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-seth-moulton-win-the-massachusetts-democratic-senate-primary-by-less-than-5","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.29,0.3,0.28,0.29,0.055,0.31,0.31,0.31,0.055,0.31,0.31,0.305,0.05,0.055,0.055,0.05,0.045,0.31,0.305,0.05,0.295,0.05,0.05,0.05,0.05,0.05,0.05]},{"source":"polymarket","id":"3751953","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-less-than-5","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by less than 5%?","group_item_title":"Markey <5%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.086,0.914],"probability":0.086,"spread":0.164,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":140.992726,"volume_24hr":124.992726,"prob_24h_change":-0.137,"volume_24h_change":124.992726,"normalized_vol_24hr":8.850672721862793,"normalized_volume":7.205622673034668,"liquidity":286.53742,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-less-than-5","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.24,0.24,0.24,0.24,0.245,0.25,0.25,0.265,0.26,0.335,0.2,0.17,0.135,0.13,0.125,0.12,0.115,0.1075,0.107,0.104,0.103]},{"source":"polymarket","id":"3751960","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-35-40","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 35–40%?","group_item_title":"Markey 35–40%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.085,0.915],"probability":0.085,"spread":0.05,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":154.82,"volume_24hr":138.82,"prob_24h_change":-0.15000000000000002,"volume_24h_change":138.82,"normalized_vol_24hr":9.23591423034668,"normalized_volume":7.478381156921387,"liquidity":334.1199,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-35-40","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.26,0.35,0.32,0.115,0.28,0.41,0.11,0.11,0.275,0.27,0.28,0.28,0.405,0.25,0.175,0.15,0.175,0.17,0.165,0.165,0.16,0.16,0.155,0.155,0.15,0.095,0.09,0.17,0.175]},{"source":"polymarket","id":"3751954","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-5-10","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 5–10%?","group_item_title":"Markey 5–10%","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.055,0.945],"probability":0.055,"spread":0.11,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":184.42,"volume_24hr":168.42,"prob_24h_change":-0.28,"volume_24h_change":168.42,"normalized_vol_24hr":9.967842102050781,"normalized_volume":8.0024995803833,"liquidity":200.9997,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:40:58.229471Z","fetched_at":"2026-08-28T21:36:46.211299Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-5-10","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.32,0.345,0.32,0.085,0.085,0.085,0.085,0.085,0.08,0.455,0.08,0.08,0.08,0.245,0.245,0.245,0.245,0.245,0.245,0.245,0.245,0.07,0.075,0.075]},{"source":"polymarket","id":"3751961","event_id":"882591","slug":"will-markey-win-the-massachusetts-democratic-senate-primary-by-40-or-more","question":"Will Ed Markey win the Massachusetts Democratic Senate primary by 40% or more?","group_item_title":"Markey 40%+","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-ed-markey-be-the-democratic-nominee-for-senate-in-massachusetts-ZHyPTJIoXnmn.jpg","outcomes":["Yes","No"],"outcome_prices":[0.052,0.948],"probability":0.052,"spread":0.056,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":165.393375,"volume_24hr":103.393375,"prob_24h_change":-0.003500000000000003,"volume_24h_change":103.393375,"normalized_vol_24hr":8.17573356628418,"normalized_volume":7.674142837524414,"liquidity":286.42193,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T21:59:52.304374Z","fetched_at":"2026-08-28T21:59:52.304374Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-markey-win-the-massachusetts-democratic-senate-primary-by-40-or-more","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.1,0.24,0.245,0.235,0.24,0.075,0.05,0.05,0.245,0.055,0.24,0.05,0.045,0.028,0.0225,0.0175,0.0115,0.0235,0.022,0.242,0.046,0.2435,0.04,0.056,0.251,0.2515]},{"source":"polymarket","id":"3751951","event_id":"882591","slug":"will-seth-moulton-win-the-massachusetts-democratic-senate-primary-copy","question":"Will Seth Moulton win the Massachusetts Democratic Senate primary by at least 5%?","group_item_title":"Moulton 5%+","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-seth-moulton-be-the-democratic-nominee-for-senate-in-massachusetts-rxRmK5ytj79r.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-seth-moulton-be-the-democratic-nominee-for-senate-in-massachusetts-rxRmK5ytj79r.jpg","outcomes":["Yes","No"],"outcome_prices":[0.0055,0.9945],"probability":0.0055,"spread":0.005,"active":true,"closed":false,"start_date":"2026-08-20T21:36:49Z","end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":263.57,"volume_24hr":162.57,"prob_24h_change":-0.0575,"volume_24h_change":162.57,"normalized_vol_24hr":9.831816673278809,"normalized_volume":9.128968238830566,"liquidity":8497.0548,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T19:57:24.927750Z","fetched_at":"2026-08-28T18:12:10.172813Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-seth-moulton-win-the-massachusetts-democratic-senate-primary-copy","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.0625,0.03,0.059,0.062,0.062,0.062,0.0545,0.0545,0.052,0.053,0.0525,0.0525,0.036,0.0055,0.0055,0.0055,0.0055,0.0055,0.0055,0.0055,0.0055,0.0055,0.0055,0.0055]},{"source":"polymarket","id":"3751950","event_id":"882591","slug":"will-moulton-win-the-massachusetts-democratic-senate-primary","question":"Will someone else win the Massachusetts Democratic Senate primary?","group_item_title":"Other","description":"The Massachusetts state primary is scheduled to be held on September 1, 2026.\n\nThis market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator.\n\nFor the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.\n\nIf the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.\n\nIf two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.”\n\nThis market will resolve based on the official vote count once the count has been made official.\n\nIf the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”.\n\nThe primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice.\n\nIf a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/massachusetts-democratic-senate-primary-winner-fbf55jTM3zXE.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/massachusetts-democratic-senate-primary-winner-fbf55jTM3zXE.png","outcomes":["Yes","No"],"outcome_prices":[0.5,0.5],"probability":0.5,"spread":1.0,"active":true,"closed":false,"start_date":null,"end_date":"2026-09-02T03:59:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-08-28T06:48:46.532269Z","fetched_at":"2026-08-20T21:55:48.411104Z","added_at":"2026-08-20T21:55:48.411104Z","url":"https://polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory/will-moulton-win-the-massachusetts-democratic-senate-primary","event_title":"Massachusetts Democratic Senate Primary Margin of Victory","chart_24h":[0.5,0.5]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/882591","as_of":"2026-08-28T22:04:16.923557Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Massachusetts Democratic Senate Primary Margin of Victory\" — top market at 18% probability across 12 outcomes","source_url":null}}