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Ohio Democratic Senate Primary Winner

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Ohio Democratic Senate Primary Winner

Sherrod Brown 98.0%

Allison Russo 1.3%

Greg Landsman <1%

Tim Ryan <1%

Polymarket

$15,863 Vol.

Sherrod Brown 98.0%

Allison Russo 1.3%

Greg Landsman <1%

Tim Ryan <1%

Polymarket

$15,863 Vol.

Sherrod Brown

$5,604 Vol.

98%

Allison Russo

$1,100 Vol.

1%

Greg Landsman

$8,213 Vol.

1%

Tim Ryan

$945 Vol.

<1%

This market will resolve according to the winner of the Democratic Primary for United States Senator from Ohio. If no 2026 Ohio Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Ohio Democratic party, however an overwhelming consensus of credible reporting may suffice.Incumbent-like favorite Sherrod Brown commands 98% trader consensus for the Ohio Democratic U.S. Senate primary on May 5, driven by his three prior terms, unmatched name recognition, and dominant fundraising as Democrats' top recruit for the special election vacancy left by JD Vance's vice presidency. Post-February filing deadline, minor challengers Allison Russo, Greg Landsman, and Tim Ryan show no polling traction or momentum, with party endorsements and resources consolidating behind Brown despite his 2024 general election defeat. Recent general election polls pit him closely against Republican appointee Jon Husted, but primary odds reflect negligible upset risk absent a late scandal, health issue, or surprise endorsement shift in the final weeks.

This market will resolve according to the winner of the Democratic Primary for United States Senator from Ohio.

If no 2026 Ohio Democratic Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the Ohio Democratic party, however an overwhelming consensus of credible reporting may suffice.
Volume
$15,863
End Date
May 5, 2026
Market Opened
Dec 2, 2025, 3:41 PM ET
This market will resolve according to the winner of the Democratic Primary for United States Senator from Ohio. If no 2026 Ohio Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Ohio Democratic party, however an overwhelming consensus of credible reporting may suffice.
This market will resolve according to the winner of the Democratic Primary for United States Senator from Ohio. If no 2026 Ohio Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Ohio Democratic party, however an overwhelming consensus of credible reporting may suffice.Incumbent-like favorite Sherrod Brown commands 98% trader consensus for the Ohio Democratic U.S. Senate primary on May 5, driven by his three prior terms, unmatched name recognition, and dominant fundraising as Democrats' top recruit for the special election vacancy left by JD Vance's vice presidency. Post-February filing deadline, minor challengers Allison Russo, Greg Landsman, and Tim Ryan show no polling traction or momentum, with party endorsements and resources consolidating behind Brown despite his 2024 general election defeat. Recent general election polls pit him closely against Republican appointee Jon Husted, but primary odds reflect negligible upset risk absent a late scandal, health issue, or surprise endorsement shift in the final weeks.

This market will resolve according to the winner of the Democratic Primary for United States Senator from Ohio.

If no 2026 Ohio Democratic Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the Ohio Democratic party, however an overwhelming consensus of credible reporting may suffice.
Volume
$15,863
End Date
May 5, 2026
Market Opened
Dec 2, 2025, 3:41 PM ET
This market will resolve according to the winner of the Democratic Primary for United States Senator from Ohio. If no 2026 Ohio Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Ohio Democratic party, however an overwhelming consensus of credible reporting may suffice.

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Frequently Asked Questions

"Ohio Democratic Senate Primary Winner" is a prediction market on Polymarket with 4 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Sherrod Brown" at 98%, followed by "Allison Russo" at 1%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 98¢ implies that the market collectively assigns a 98% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Ohio Democratic Senate Primary Winner" has generated $15.9K in total trading volume since the market launched on Dec 2, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Ohio Democratic Senate Primary Winner," browse the 4 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Ohio Democratic Senate Primary Winner" is "Sherrod Brown" at 98%, meaning the market assigns a 98% chance to that outcome. The next closest outcome is "Allison Russo" at 1%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Ohio Democratic Senate Primary Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.