Helm

OH-09 House forecast

Likely Dem2026 lines

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Kaptur 73% chance

  • Marcy Kaptur (D)-1% past 7 days73%
  • Derek Merrin (R)+1% past 7 days28%

Chance over time

  • Kaptur73%
  • Merrin28%

Chance over time, past month: Kaptur from 74% to 73%; Merrin from 26% to 28%.

Chance over time, past month, weekly
DateKapturMerrin
Sep 22, 202673%26%
Sep 29, 202674%26%
Oct 7, 202669%31%
Oct 14, 202674%27%
Oct 21, 202673%28%

Projected margin

Most likely Kaptur by 0–3 · 8 in 10: Merrin +2.3 to Kaptur +12

Margin forecast from public sources, collected by Helm's data infrastructure
Projected margin of victory
MarginChance
Merrin by 12+1%
Merrin by 9–121%
Merrin by 6–91%
Merrin by 3–64%
Merrin by 0–316%
Kaptur by 0–319%
Kaptur by 3–617%
Kaptur by 6–912%
Kaptur by 9–1210%
Kaptur by 12+18%

Helm simulation

Decides House control in 1 of 100 simulations.

In simulated elections where Kaptur wins, Democrats win the House in 95 of 100. Where Merrin wins, in 83 of 100.

Call this race in your scenario

Context

  • New lines for 2026: the current OH-09 member was elected on different lines.

More in Ohio

14 more House districts

News and signals

House
92% DEM
Senate
65% DEM