The Prediction Markets

Market comparison

OH-09 House Election Margin of Victory

2 venues · 21 outcome rows · 0 comparable lines · event identity linked · 0 verified parity · active

Polymarket

Open venue ↗

13 outcomes · $25K reported volume

Observed 1m ago

Recorded venue end date: Nov 4, 2026

11 outcomes · $13K reported volume

Observed 25s ago

Observed 2m ago

Recorded venue end date: Nov 3, 2027

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These venues also report end dates more than 48 hours apart; event identity does not mean the contracts close or settle together. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

No shared outcome identities or comparable outcome lines are available for this event. Each venue’s outcomes are listed separately.

Democrat 3-6%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

15.5%

Bid 15.0% · Ask 16.0%

Democrat 3-6%

Open Polymarket ↗

Kalshi

—

Democrat 3-6%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

3.5%

Bid 3.4% · Ask 3.5%

Republican 3-6%

Open Polymarket ↗

Kalshi

—

Democrat 6-9%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

12.2%

Bid 12.0% · Ask 12.3%

Democrat 6-9%

Open Polymarket ↗

Kalshi

—

Democrat 6-9%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.4%

Bid 0.4% · Ask 0.5%

Republican 6-9%

Open Polymarket ↗

Kalshi

—

Democrat 9-12%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

8.8%

Bid 0.5% · Ask 17.0%

Democrat 9-12%

Open Polymarket ↗

Kalshi

—

Democrat 9-12%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.5%

Bid 0.1% · Ask 0.9%

Republican 9-12%

Open Polymarket ↗

Kalshi

—

Democrat 12%+

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

19.5%

Bid 19.0% · Ask 20.0%

Democrat 12%+

Open Polymarket ↗

Kalshi

—

Democrat 12%+

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

2.5%

Bid 0.5% · Ask 4.5%

Republican 12%+

Open Polymarket ↗

Kalshi

—

Kaptur, 1+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

70.0%

Bid 70.0% · Ask 80.0%

Kaptur, 1+ pts

Open Kalshi ↗

Kaptur, 3+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

65.0%

Bid 61.0% · Ask 69.0%

Kaptur, 3+ pts

Open Kalshi ↗

Kaptur, 6+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

53.0%

Bid 42.0% · Ask 53.0%

Kaptur, 6+ pts

Open Kalshi ↗

Kaptur, 9+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

32.0%

Bid 25.0% · Ask 37.0%

Kaptur, 9+ pts

Open Kalshi ↗

Kaptur, 12+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

23.0%

Bid 11.0% · Ask 23.0%

Kaptur, 12+ pts

Open Kalshi ↗

Kaptur, 15+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

13.0%

Bid 1.8% · Ask 13.0%

Kaptur, 15+ pts

Open Kalshi ↗

Kaptur, 18+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

4.9%

Bid 1.0% · Ask 8.9%

Kaptur, 18+ pts

Open Kalshi ↗

Merrin, 1+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

21.0%

Bid 9.7% · Ask 21.0%

Merrin, 1+ pts

Open Kalshi ↗

Merrin, 3+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

12.0%

Bid 8.0% · Ask 15.0%

Merrin, 3+ pts

Open Kalshi ↗

Merrin, 6+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

9.8%

Bid 0.0% · Ask 9.8%

Merrin, 6+ pts

Open Kalshi ↗

Merrin, 9+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

7.3%

Bid 0.0% · Ask 7.3%

Merrin, 9+ pts

Open Kalshi ↗

Republican 0-3%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

18.5%

Bid 18.0% · Ask 19.0%

Democrat 0-3%

Open Polymarket ↗

Kalshi

—

Republican 0-3%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

14.9%

Bid 14.8% · Ask 15.0%

Republican 0-3%

Open Polymarket ↗

Kalshi

—

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.