{"_meta":{"attribution":"Data aggregated by pdata.world (https://pdata.world) from 8 prediction-market venues; CC BY 4.0; source data © each venue.","canonical_url":"https://pdata.world/events/polymarket/1274356","as_of":"2026-10-30T05:51:59.538792Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Senate Combo: Michigan and Ohio\" — \"Dems sweep\" leads at 56% across 5 outcomes as of 2026-10-30 UTC. https://pdata.world/events/polymarket/1274356","source_url":"https://polymarket.com/event/senate-combo-michigan-ohio"},"source":"polymarket","id":"1274356","ticker":"senate-combo-michigan-ohio","slug":"senate-combo-michigan-ohio","title":"Senate Combo: Michigan and Ohio","description":"This market will resolve according to the outcome of the United States Senate general elections in Michigan and Ohio (including the special election in Ohio) that are currently scheduled for November 3, 2026, inclusive of any potential runoffs. \n\nA candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nIf the results of one of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to \"Other\". \n\nFor purposes of this market, a \"sweep\" is when a party wins all races. \n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/senate-combo-michigan-ohio-gSjmAOEfLoEo.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/senate-combo-michigan-ohio-gSjmAOEfLoEo.png","active":true,"closed":false,"start_date":"2026-10-28T22:37:00Z","end_date":"2026-11-03T23:59:00Z","closed_time":null,"volume":2868.806386,"volume_24hr":2748.806386,"volume_24h_change":null,"normalized_vol_24hr":25.084989547729492,"normalized_volume":14.39549732208252,"liquidity":32396.592,"open_interest":1000.201766,"categories":["Politics"],"tags":[{"id":"2","slug":"politics","label":"Politics"},{"id":"339","slug":"election","label":"election"},{"id":"105887","slug":"jon-husted","label":"Jon Husted"},{"id":"105975","slug":"ohio-senate","label":"Ohio Senate"},{"id":"1101","slug":"us-presidential-election","label":"US Election"},{"id":"100547","slug":"mike-rogers","label":"mike rogers"},{"id":"104002","slug":"ohio-midterm","label":"Ohio Midterm"},{"id":"100572","slug":"sherrod-brown","label":"sherrod brown"},{"id":"105884","slug":"abdul-el-sayed","label":"Abdul El-Sayed"},{"id":"106417","slug":"midterm-combos","label":"Midterm Combos"},{"id":"105969","slug":"michigan-senate","label":"Michigan Senate"},{"id":"104024","slug":"michigan-midterm","label":"Michigan Midterm"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Dems sweep","top_outcome_probability":0.565,"top_outcome_prob_24h_change":-0.14500000000000002,"top_outcome_volume_24h_change":1286.95705,"updated_at":"2026-10-30T05:39:50.339242Z","fetched_at":"2026-10-30T05:39:50.339242Z","added_at":"2026-10-28T22:52:06.869926Z","url":"https://polymarket.com/event/senate-combo-michigan-ohio","chart_24h":[286.24972,516.378936,589.705603,609.705603,613.407455,718.787455,758.787455,818.787455,832.787455,873.018567,873.018567,973.018567,1052.018567,1095.587456,1095.587456,1123.587456,1144.896547,1160.060497,1160.060497,1260.060497,2051.177214,2483.966556,2484.436556,2511.536556,2481.536556,2687.461941,2748.8063859999997,2748.806386],"kind":"live","mutually_exclusive":true,"markets_total":5,"markets":[{"source":"polymarket","id":"6367351","event_id":"1274356","slug":"will-democrats-win-the-michigan-and-ohio-senate-seats","question":"Will Democrats win the Michigan and Ohio Senate seats?","group_item_title":"Dems sweep","description":"This market will resolve according to the outcome of the United States Senate general elections in Michigan and Ohio (including the special election in Ohio) that are currently scheduled for November 3, 2026, inclusive of any potential runoffs. \n\nA candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nIf the results of one of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to \"Other\". \n\nFor purposes of this market, a \"sweep\" is when a party wins all races. \n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant elections. 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