Will Wyoming be the closest Senate race in 2026?

Q: Will Wyoming be the closest Senate race in 2026?

Prediction markets currently price this at 7%. A YES share costs 7.0¢ and pays $1 if it happens. That is a return of 1328.6% over 27d.

Closest Senate Race?$410 liquidity$0 volumecloses 27d

SenateMidtermsPolitics

Trade on Polymarket

BUY YES

Cost: 7.0¢
Implied chance: 7.0%
Return if right: 1328.6%
Spread cost: 50%

If you put in $100

You get 1428.6 shares at 7.0¢ each.

YES wins: $1428.57 back, a profit of $1328.57. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $1349.21 of that profit. Without it you would make $2677.78.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy YES on Polymarket

BUY NO

Cost: 99.8¢
Implied chance: 99.8%
Return if right: 0.2%
Spread cost: 95%

If you put in $100

You get 100.2 shares at 99.8¢ each.

NO wins: $100.20 back, a profit of $0.20. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $3.53 of that profit. Without it you would make $3.73.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy NO on Polymarket

Chance over time

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Latest: Oct 8, 01:48 AM4 further outcomes not shown

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How this market resolves

The 2026 midterm elections are scheduled to be held on November 3, 2026. This market will resolve according to the US Senate race which has the smallest margin of victory. For 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. For 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. If two state margins of victory are identical, this market will resolve to the tied state whose name comes first alphabetically. This market will consider all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. The 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.