{"source":"polymarket","id":"638084","ticker":"closest-senate-race-20260626184244519","slug":"closest-senate-race-20260626184244519","title":"Closest Senate Race?","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-senate-pass-funding-bill-by-7NO2CCO7a2Mk.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-senate-pass-funding-bill-by-7NO2CCO7a2Mk.png","active":true,"closed":false,"start_date":"2026-06-26T20:04:58.605709Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":727.4976,"volume_24hr":0.0,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":8.995038986206055,"liquidity":19435.2061,"open_interest":727.4975979999999,"categories":["Politics"],"tags":[{"id":"102289","slug":"midterms","label":"Midterms"},{"id":"2","slug":"politics","label":"Politics"},{"id":"100199","slug":"senate-elections","label":"Senate"},{"id":"176","slug":"us-elections","label":"us elections"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Alaska","top_outcome_probability":0.43,"top_outcome_prob_24h_change":0.0,"top_outcome_volume_24h_change":0.0,"updated_at":"2026-06-30T04:21:52.369716Z","fetched_at":"2026-06-30T04:21:52.369716Z","added_at":"2026-06-26T21:35:17.577252Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0],"markets":[{"source":"polymarket","id":"2698010","event_id":"638084","slug":"untitled-market-1-20260626182645521","question":"Will Alaska have the closest Senate race in 2026?","group_item_title":"Alaska","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.43,0.57],"probability":0.43,"spread":0.86,"active":true,"closed":false,"start_date":"2026-06-26T21:20:26.195686Z","end_date":"2026-11-03T23:59:00Z","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":1009.7997,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:06:49.988945Z","fetched_at":"2026-06-30T04:05:34.036886Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/untitled-market-1-20260626182645521","event_title":"Closest Senate Race?","chart_24h":[0.43,0.42,0.42,0.42,0.43,0.435,0.42,0.43,0.43,0.43,0.42,0.43,0.42,0.43,0.43]},{"source":"polymarket","id":"2698016","event_id":"638084","slug":"will-iowa-have-the-closest-senate-race-in-2026-20260626184244526","question":"Will Iowa have the closest Senate race in 2026?","group_item_title":"Iowa","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.43,0.57],"probability":0.43,"spread":0.86,"active":true,"closed":false,"start_date":"2026-06-26T20:22:38.918874Z","end_date":"2026-11-03T23:59:00Z","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":1001.2997,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:06:49.988945Z","fetched_at":"2026-06-30T04:05:34.036886Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-iowa-have-the-closest-senate-race-in-2026-20260626184244526","event_title":"Closest Senate Race?","chart_24h":[0.43,0.43,0.43,0.42,0.43,0.42,0.43,0.42,0.43,0.43,0.435,0.43,0.43,0.43,0.435,0.43,0.42,0.43,0.42,0.425,0.43,0.43]},{"source":"polymarket","id":"2698019","event_id":"638084","slug":"will-ohio-special-have-the-closest-senate-race-in-2026-20260626184244529","question":"Will Ohio (Special) have the closest Senate race in 2026?","group_item_title":"Ohio (Special)","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.43,0.57],"probability":0.43,"spread":0.86,"active":true,"closed":false,"start_date":"2026-06-26T20:05:21.037799Z","end_date":"2026-11-03T23:59:00Z","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":1008.1537,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-ohio-special-have-the-closest-senate-race-in-2026-20260626184244529","event_title":"Closest Senate Race?","chart_24h":[0.43,0.43,0.435,0.43,0.425,0.435,0.43,0.43,0.425,0.43,0.435,0.435,0.435]},{"source":"polymarket","id":"2698014","event_id":"638084","slug":"will-texas-have-the-closest-senate-race-in-2026-20260626184244524","question":"Will Texas have the closest Senate race in 2026?","group_item_title":"Texas","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.285,0.715],"probability":0.285,"spread":0.51,"active":true,"closed":false,"start_date":"2026-06-26T20:05:06.902488Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.10499999999999998,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":1074.5848,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-texas-have-the-closest-senate-race-in-2026-20260626184244524","event_title":"Closest Senate Race?","chart_24h":[0.18,0.2,0.205,0.205,0.205,0.2,0.205,0.21,0.205,0.21,0.205,0.21,0.395,0.325,0.395,0.375,0.3,0.275,0.3,0.275,0.26,0.315,0.31]},{"source":"polymarket","id":"2698018","event_id":"638084","slug":"will-michigan-have-the-closest-senate-race-in-2026-20260626184244528","question":"Will Michigan have the closest Senate race in 2026?","group_item_title":"Michigan","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.275,0.725],"probability":0.275,"spread":0.53,"active":true,"closed":false,"start_date":"2026-06-26T20:05:18.785555Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":69.75,"volume_24hr":0.0,"prob_24h_change":-0.14499999999999996,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.275826454162598,"liquidity":1058.1887,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-29T21:25:47.199958Z","fetched_at":"2026-06-29T19:33:24.870646Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-michigan-have-the-closest-senate-race-in-2026-20260626184244528","event_title":"Closest Senate Race?","chart_24h":[0.42,0.225,0.22,0.345,0.41,0.41,0.22,0.205,0.205,0.365,0.395,0.355,0.355,0.275,0.275,0.275]},{"source":"polymarket","id":"2698022","event_id":"638084","slug":"will-virginia-have-the-closest-senate-race-in-2026-20260626184244532","question":"Will Virginia have the closest Senate race in 2026?","group_item_title":"Virginia","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.225,0.775],"probability":0.225,"spread":0.43,"active":true,"closed":false,"start_date":"2026-06-26T20:05:30.198004Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":64.6188,"volume_24hr":0.0,"prob_24h_change":-0.1,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.0909504890441895,"liquidity":1326.2498,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-virginia-have-the-closest-senate-race-in-2026-20260626184244532","event_title":"Closest Senate Race?","chart_24h":[0.325,0.415,0.41,0.39,0.335,0.33,0.38,0.365,0.395,0.38,0.38,0.42,0.33,0.385,0.36,0.41,0.395,0.38,0.38,0.38,0.38,0.22,0.225,0.22,0.225,0.22,0.225,0.22]},{"source":"polymarket","id":"2698013","event_id":"638084","slug":"will-new-mexico-have-the-closest-senate-race-in-2026-20260626184244523","question":"Will New Mexico have the closest Senate race in 2026?","group_item_title":"New Mexico","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.22,0.78],"probability":0.22,"spread":0.42,"active":true,"closed":false,"start_date":"2026-06-26T20:05:04.851355Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":69.75,"volume_24hr":0.0,"prob_24h_change":-0.16,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.275826454162598,"liquidity":1090.9659,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-new-mexico-have-the-closest-senate-race-in-2026-20260626184244523","event_title":"Closest Senate Race?","chart_24h":[0.38,0.38,0.43,0.41,0.39,0.22,0.215,0.375,0.345,0.335,0.42,0.38,0.38,0.215,0.22,0.22,0.215,0.22,0.22,0.22,0.215,0.22,0.215,0.22,0.215,0.22,0.215]},{"source":"polymarket","id":"2698025","event_id":"638084","slug":"will-maine-have-the-closest-senate-race-in-2026-20260626184244535","question":"Will Maine have the closest Senate race in 2026?","group_item_title":"Maine","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.205,0.795],"probability":0.205,"spread":0.39,"active":true,"closed":false,"start_date":"2026-06-26T20:37:08.114786Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":69.75,"volume_24hr":0.0,"prob_24h_change":-0.155,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.275826454162598,"liquidity":1308.1792,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-maine-have-the-closest-senate-race-in-2026-20260626184244535","event_title":"Closest Senate Race?","chart_24h":[0.36,0.2,0.405,0.39,0.37,0.2,0.215,0.4,0.39,0.2,0.39,0.28,0.375,0.36,0.36,0.2,0.205,0.205,0.2,0.205,0.2,0.205,0.2,0.205,0.2]},{"source":"polymarket","id":"2698015","event_id":"638084","slug":"will-nebraska-have-the-closest-senate-race-in-2026-20260626184244525","question":"Will Nebraska have the closest Senate race in 2026?","group_item_title":"Nebraska","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.2,0.8],"probability":0.2,"spread":0.38,"active":true,"closed":false,"start_date":"2026-06-26T20:22:34.730270Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":54.73,"volume_24hr":0.0,"prob_24h_change":-0.14999999999999997,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":4.701195240020752,"liquidity":1304.632,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-nebraska-have-the-closest-senate-race-in-2026-20260626184244525","event_title":"Closest Senate Race?","chart_24h":[0.35,0.2,0.395,0.2,0.275,0.27,0.275,0.2,0.19,0.19,0.365,0.41,0.4,0.215,0.22,0.2,0.195,0.2,0.2,0.2,0.195,0.2,0.2,0.195,0.2,0.195,0.2,0.195]},{"source":"polymarket","id":"2698024","event_id":"638084","slug":"will-new-hampshire-have-the-closest-senate-race-in-2026-20260626184244534","question":"Will New Hampshire have the closest Senate race in 2026?","group_item_title":"New Hampshire","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.195,0.805],"probability":0.195,"spread":0.37,"active":true,"closed":false,"start_date":"2026-06-26T20:07:26.628989Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":35.15,"volume_24hr":0.0,"prob_24h_change":-0.14999999999999997,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":3.743439197540283,"liquidity":1319.115,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-new-hampshire-have-the-closest-senate-race-in-2026-20260626184244534","event_title":"Closest Senate Race?","chart_24h":[0.345,0.345,0.185,0.41,0.405,0.305,0.25,0.285,0.35,0.385,0.415,0.39,0.27,0.32,0.315,0.42,0.195,0.195,0.195,0.19,0.195,0.19,0.195,0.19,0.195,0.19]},{"source":"polymarket","id":"2698023","event_id":"638084","slug":"will-north-carolina-have-the-closest-senate-race-in-2026-20260626184244533","question":"Will North Carolina have the closest Senate race in 2026?","group_item_title":"North Carolina","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.19,0.81],"probability":0.19,"spread":0.36,"active":true,"closed":false,"start_date":"2026-06-26T20:05:31.229018Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":64.6188,"volume_24hr":0.0,"prob_24h_change":-0.185,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.0909504890441895,"liquidity":1309.8764,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T03:36:05.378445Z","fetched_at":"2026-06-30T03:35:01.834061Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-north-carolina-have-the-closest-senate-race-in-2026-20260626184244533","event_title":"Closest Senate Race?","chart_24h":[0.375,0.285,0.185,0.18,0.195,0.18,0.165,0.335,0.325,0.195,0.365,0.36,0.36,0.365,0.405,0.35,0.22,0.19,0.185,0.19,0.19,0.185,0.19,0.185,0.19,0.185,0.19]},{"source":"polymarket","id":"2698017","event_id":"638084","slug":"will-minnesota-have-the-closest-senate-race-in-2026-20260626184244527","question":"Will Minnesota have the closest Senate race in 2026?","group_item_title":"Minnesota","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.175,0.825],"probability":0.175,"spread":0.33,"active":true,"closed":false,"start_date":"2026-06-26T20:22:39.943742Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":69.75,"volume_24hr":0.0,"prob_24h_change":-0.2,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.275826454162598,"liquidity":1366.6804,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-minnesota-have-the-closest-senate-race-in-2026-20260626184244527","event_title":"Closest Senate Race?","chart_24h":[0.375,0.285,0.215,0.17,0.33,0.32,0.215,0.315,0.385,0.385,0.38,0.38,0.365,0.41,0.385,0.36,0.36,0.17,0.175,0.17,0.175,0.17,0.175,0.17,0.175,0.17]},{"source":"polymarket","id":"2698020","event_id":"638084","slug":"will-georgia-have-the-closest-senate-race-in-2026-20260626184244530","question":"Will Georgia have the closest Senate race in 2026?","group_item_title":"Georgia","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.175,0.825],"probability":0.175,"spread":0.33,"active":true,"closed":false,"start_date":"2026-06-26T20:05:24.030801Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":35.15,"volume_24hr":0.0,"prob_24h_change":-0.2,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":3.743439197540283,"liquidity":1322.0714,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-georgia-have-the-closest-senate-race-in-2026-20260626184244530","event_title":"Closest Senate Race?","chart_24h":[0.375,0.375,0.385,0.275,0.27,0.25,0.405,0.27,0.17,0.195,0.275,0.23,0.215,0.215,0.365,0.355,0.38,0.215,0.22,0.22,0.215,0.22,0.22,0.22,0.215,0.22,0.215,0.22,0.175,0.175,0.17]},{"source":"polymarket","id":"2698011","event_id":"638084","slug":"will-montana-have-the-closest-senate-race-in-2026-20260626184244521","question":"Will Montana have the closest Senate race in 2026?","group_item_title":"Montana","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.165,0.835],"probability":0.165,"spread":0.31,"active":true,"closed":false,"start_date":"2026-06-26T20:04:58.605709Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":54.73,"volume_24hr":0.0,"prob_24h_change":-0.21,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":4.701195240020752,"liquidity":1346.507,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T04:23:16.377187Z","fetched_at":"2026-06-30T04:21:52.657380Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-montana-have-the-closest-senate-race-in-2026-20260626184244521","event_title":"Closest Senate Race?","chart_24h":[0.375,0.375,0.2,0.165,0.205,0.17,0.21,0.235,0.16,0.145,0.145,0.365,0.345,0.34,0.29,0.22,0.165,0.165,0.165,0.16,0.165,0.16,0.165,0.16,0.165,0.16]},{"source":"polymarket","id":"2698012","event_id":"638084","slug":"will-colorado-have-the-closest-senate-race-in-2026-20260626184244522","question":"Will Colorado have the closest Senate race in 2026?","group_item_title":"Colorado","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.105,0.895],"probability":0.105,"spread":0.19,"active":true,"closed":false,"start_date":"2026-06-26T20:05:03.858548Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":69.75,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.275826454162598,"liquidity":1297.5962,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T03:21:25.783748Z","fetched_at":"2026-06-28T10:11:44.780584Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-colorado-have-the-closest-senate-race-in-2026-20260626184244522","event_title":"Closest Senate Race?","chart_24h":[0.105,0.105]},{"source":"polymarket","id":"2698021","event_id":"638084","slug":"will-florida-special-have-the-closest-senate-race-in-2026-20260626184244531","question":"Will Florida (Special) have the closest Senate race in 2026?","group_item_title":"Florida (Special)","description":"The 2026 midterm elections are scheduled to be held on November 3, 2026.\n\nThis market will resolve according to the US Senate race which has the smallest margin of victory. \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\nFor elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. \n\nIf two state margins of victory are identical, this market will resolve to the tied state whose last name comes first alphabetically.\n\nThis market will consider the results of all Senate elections, including special elections, that are scheduled to be held in November, 2026, by October 31, 2026, including the results of runoff elections held after November, 2026. \n\nThe resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.105,0.895],"probability":0.105,"spread":0.19,"active":true,"closed":false,"start_date":"2026-06-26T20:05:25.100274Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":69.75,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":5.275826454162598,"liquidity":1298.9665,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-30T03:21:25.783748Z","fetched_at":"2026-06-28T10:11:44.780584Z","added_at":"2026-06-26T21:35:17.698495Z","url":"https://polymarket.com/event/closest-senate-race-20260626184244519/will-florida-special-have-the-closest-senate-race-in-2026-20260626184244531","event_title":"Closest Senate Race?","chart_24h":[0.105,0.105]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/638084","as_of":"2026-06-30T04:24:53.967377Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Closest Senate Race?\" — top market at 43% probability across 16 outcomes","source_url":null}}