PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedCurrent implied probability
Sherrod Brown (D) 61.4%
Sherrod Brown (D) 61.4%Market quality
88 / 100
High quality24h Volume
$34.4K
Liquidity
$525.4K
High liquidityBid / Ask
61.0% / 62.0%
Spread
1.0 pt
Tight spreadComments
21
7d Change
+3.0 pts
Market data
Updated 24 minutes ago
Oct 13, 25, 8:41 PM UTCNov 4, 26, 4:59 AM UTC
Trends
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 1 percentage points
- Fees:
- Yes
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Ohio Senate Election Margin of Victory
PolymarketOhio Senate Election: Turnout
PolymarketWill a Democrat win the Ohio Senate special election?
Manifold MarketsOhio Senate and Governor Combo
PolymarketOhio Senate Election: Mahoning County Winner
PolymarketWill Democrats win any of Alaska, Iowa, or Ohio in the Senate races this year?
Manifold MarketsRules
This market will resolve according to the winner of the 2026 Ohio U.S. Senate special election currently scheduled for November 3, inclusive of any run-offs.
- A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question.
- Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
- 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.
- The candidates may be named in the contract for the convenience of traders.
- In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party.
Prediction Source Comparison
2 venues currently price this market. CoinRithm's liquidity-weighted reference probability for Sherrod Brown (D) is 62%. The venues do not agree on which outcome is ahead.
CoinRithm reference Sherrod Brown (D) 62% · 2 venues · 0 pt venue spread
- Also available on Kalshi — Ohio Senate winner? · Sherrod Brown 62%
- Also available on Futuur — Ohio's Senate election winner · Democratic Party 57%
- Also available on Robinhood (Rothera) — 2026 Ohio Senate Race · Democrat 65%
