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Which Senate races will be within 5%? — Polymarket Odds

Updated September 24, 2026 · Category: Politics & Elections · Market end date: November 4, 2026

As of September 24, 2026 at 15:51 UTC, the leading outcome is Texas at 75.5%, followed by Iowa at 71%, Maine at 68.5%. The market has $72.1K in total volume and $627 in the last 24 hours.

Current odds

OutcomeProbability24h changeVolume
Texas75.5%
$8.2K
Iowa71%
+2.5 pts$5.9K
Maine68.5%
+8.5 pts$1.3K
Alaska67.5%
+11.0 pts$3.4K
South Carolina65.5%
+3.5 pts$157
Michigan60.5%
-0.5 pts$3.2K
New Hampshire59.5%
+25.5 pts$2.4K
Kansas59%
-1.0 pts$792
Ohio (Special)47.5%
-0.5 pts$4.7K
Nebraska43.5%
-7.0 pts$4.2K
North Carolina32%
-0.5 pts$6.4K
Minnesota24.5%
-1.0 pts$10.8K
Georgia23.5%
-1.0 pts$3.1K
Florida (Special)17.5%
$3.1K
New Mexico11.5%
$7.0K

3 lower-priced outcomes are not shown; the full list is in the JSON data.

Total volume $72.1K · 24h volume $627 · Liquidity $186.7K. Prices are Polymarket YES-share prices read as probabilities; they are not executable quotes.

30-day price history

0%25%50%75%100%Aug 25Sep 24

Texas Iowa Maine · 30-day price history (12-hour points)

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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 to "Yes" if the specified 2026 Senate race has a margin of victory of 5% or less. Otherwise, this market will resolve to "No".

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.

The resolution source for this market will be the state election authority of the specified state, however, a consensus of credible reporting may also be used.

Summary of the market's published rules. The rules on Polymarket control settlement; check them there before relying on any outcome: open this market on Polymarket.

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Frequently asked questions

What are the current Polymarket odds for Which Senate races will be within 5%?

As of September 24, 2026 at 15:51 UTC, the leading outcome is Texas at 75.5%, followed by Iowa at 71%, Maine at 68.5%. The market has $72.1K in total volume and $627 in the last 24 hours.

When does the Which Senate races will be within 5% market end?

The event's listed end date is November 4, 2026. Each outcome settles under the market's written rules, summarised on this page, which can differ from the end-date field.

How are these odds calculated?

They are the displayed prices of each outcome's YES share on Polymarket. A price of 60¢ implies roughly a 60% chance. This page refreshes the numbers twice a day, so they are not live quotes.

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