Derek Merrin's 82.5% implied probability in the OH-09 Republican primary trader consensus reflects his dominant 33% showing in the mid-April JL Partners poll of likely voters—nearly triple Josh Williams' 14%—bolstered by the National Republican Congressional Committee's endorsement and prior name recognition from challenging Rep. Marcy Kaptur. Williams trails at 16.2% with backing from Rep. Jim Jordan and claims of leading Q4 fundraising, appealing to grassroots conservatives amid 40% undecideds. An April 20 debate among all five candidates, including Madison Sheahan at 2.4%, focused on immigration and foreign policy but showed no polling shift. With the May 5 primary five days away, traders anticipate undecideds breaking toward the frontrunner in this redrawn battleground district.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedDerek Merrin 82%
Josh Williams 16.2%
Madison Sheahan 2.2%
Alea Nadeem <1%
$20,004 Vol.
$20,004 Vol.
Derek Merrin
82%
Josh Williams
16%
Madison Sheahan
2%
Alea Nadeem
1%
Jacob Frost
<1%
Anthony Campbell
<1%
Wayne Kinsel
<1%
Derek Merrin 82%
Josh Williams 16.2%
Madison Sheahan 2.2%
Alea Nadeem <1%
$20,004 Vol.
$20,004 Vol.
Derek Merrin
82%
Josh Williams
16%
Madison Sheahan
2%
Alea Nadeem
1%
Jacob Frost
<1%
Anthony Campbell
<1%
Wayne Kinsel
<1%
If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other".
The resolution source for this market will be a consensus of official Republican sources, including https://www.rnc.org/.
Any replacement of the nominee before election day will not change the resolution of the market.
Market Opened: Jan 21, 2026, 10:13 AM ET
Resolver
0x2F5e3684c...If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other".
The resolution source for this market will be a consensus of official Republican sources, including https://www.rnc.org/.
Any replacement of the nominee before election day will not change the resolution of the market.
Resolver
0x2F5e3684c...Derek Merrin's 82.5% implied probability in the OH-09 Republican primary trader consensus reflects his dominant 33% showing in the mid-April JL Partners poll of likely voters—nearly triple Josh Williams' 14%—bolstered by the National Republican Congressional Committee's endorsement and prior name recognition from challenging Rep. Marcy Kaptur. Williams trails at 16.2% with backing from Rep. Jim Jordan and claims of leading Q4 fundraising, appealing to grassroots conservatives amid 40% undecideds. An April 20 debate among all five candidates, including Madison Sheahan at 2.4%, focused on immigration and foreign policy but showed no polling shift. With the May 5 primary five days away, traders anticipate undecideds breaking toward the frontrunner in this redrawn battleground district.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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