Prediction markets / Midterms / Control of Congress

Closest Senate race in 2026

Texas15¢
Iowa13¢
Ohio11¢
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Timeline

Trading hours
24 hours a day, except Thursday 3AM-5AM ET
Event day
November 3, 2026
Contract resolves
Determines the outcome of the contract
Payout
Usually within 1 hour of event resolution

About

What will be the Closest Senate race in 2026Margin of victory is calculated as the absolute percentage point difference between first and second place finishers. For two-candidate races, this is winner's percentage minus runner-up's percentage. For multi-candidate races, only the gap between first and second counts. For ranked choice/instant runoff elections, the margin from the final round is used.If official results aren't available by the deadline but at least 95% of expected vote is counted, preliminary results are used. In case of identical margins (tied to the hundredth of a percentage point), tied options split the payout equally. Postponed elections or those without sufficient results by the deadline resolve to No.Get $1 for every contract you own if your prediction is correct. Or close your position before the event resolves. Additional fees apply. Read the full contract terms and conditions

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