Ohio Senate 2026

The chance this seat goes Republican in November, across every listed contract, as a 0–100 chance the Republican wins.

LiveHeld by Republicans · projected flip to Dem·$172K traded / 24h·12 contracts·6 exchanges·Margin rank 5 of 35
SEAT PMI · 0–100 · CHANCE REPUBLICANS WIN
32.1Lean D · ▼ 8.1 14d
DEMOCRATEVENREPUBLICAN
Republicans win
32.1
enters as 32.1
Democrats win
67.9
enters as 100 − 67.9 = 32.1

Both legs are aggregated. The Democratic leg is converted as 100 − p, so this seat reads on the same scale as every other.

Control of the Senate

Does Ohio decide the Senate?

Not by itself. It is inside the Democrats’ path.
Democrats need 4 of the 7 contested seats; Ohio is priced as their 3rd most likely win. The seat that tips control is Texas at 34.3.
MOST LIKELY DEMOCRATICSEAT PMI
Alaska27.4Michigan31.4
Ohio32.1
TexasTIPS CONTROL34.3Maine38.2Iowa58.3Kansas60.3
MOST LIKELY REPUBLICAN
Democrats need 51 seats, Republicans 50 (the Republican Vice President breaks ties). Democrats count from the top, Republicans from the bottom.
Full Senate picture
Contracts behind this reading · 6 of 12

Sorted by weight

Will Democratics win the Senate race in Ohio? - Sherrod Brown68.0Kalshi ↗ · Democratic leg · enters as 32.0weight 43.3%Will the Democrats win the Ohio Senate race in 2026?69.5Polymarket ↗ · Democratic leg · enters as 30.5weight 26.1%Will the Republicans win the Ohio Senate race in 2026?30.0Polymarket ↗ · Republican leg · enters as 30.0weight 16.0%Will Republicans win the Senate race in Ohio? - Jon Husted33.0Kalshi ↗ · Republican leg · enters as 33.0weight 14.6%Ohio US Senate Winner - Sherrod Brown70.0Gemini ↗ · Democratic leg · enters as 30.0weight 0.0%Ohio US Senate Winner - William Redpath4.0Gemini ↗ · Republican leg · enters as 4.0weight 0.0%
Show all 12 contracts
Weights are 24h liquidity share · reconciled reading 32.1 · rows open on the exchange
Other Ohio races this cycle

Also on the ballot