NFL odds on Kalshi vs Polymarket
Every NFL game priced on Kalshi and Polymarket, side by side. Right now there are 834 open NFL markets — 777 on Kalshi, 57 on Polymarket — carrying $1.5M of volume in the last 24 hours.
Open NFL markets, by volume
| Market | Venue | Yes | 24h volume | Closes |
|---|---|---|---|---|
| DET Lions vs BUF Bills — Buffalo | kalshi | 68¢ | $256k | 09-18 03:15 UTC |
| DET Lions vs BUF Bills — Detroit | kalshi | 32¢ | $95k | 09-18 03:15 UTC |
| CAR Panthers vs ATL Falcons — Atlanta | kalshi | 43¢ | $73k | 09-20 20:00 UTC |
| Detroit vs Buffalo: Total Points — Over 54.5 points scored | kalshi | 52¢ | $61k | 09-18 03:15 UTC |
| Lions vs. Bills: O/U 54.5 | polymarket | 52¢ | $51k | 09-18 00:15 UTC |
| Spread: BAL (-8.5) | polymarket | 50¢ | $49k | 09-20 17:00 UTC |
| PHI Eagles vs TEN Titans — Philadelphia | kalshi | 77¢ | $48k | 09-20 20:00 UTC |
| MIA Dolphins vs SF 49ers — San Francisco | kalshi | 90¢ | $44k | 09-20 23:25 UTC |
| Spread: Bills (-4.5) | polymarket | 53¢ | $42k | 09-18 00:15 UTC |
| Detroit vs Buffalo: Total Points — Over 53.5 points scored | kalshi | 54¢ | $39k | 09-18 03:15 UTC |
| Spread: SF (-12.5) | polymarket | 50¢ | $34k | 09-20 20:25 UTC |
| New York G wins | kalshi | 27¢ | $33k | 09-22 03:15 UTC |
| Lions vs. Bills | polymarket | 33¢ | $31k | 09-18 00:15 UTC |
| JAC Jaguars vs DEN Broncos — Jacksonville | kalshi | 42¢ | $28k | 09-20 23:05 UTC |
| MIN Vikings vs CHI Bears — Chicago | kalshi | 66¢ | $24k | 09-20 20:00 UTC |
| Spread: LA (-9.5) | polymarket | 45¢ | $24k | 09-22 00:15 UTC |
| LV Raiders vs LA Chargers — Las Vegas | kalshi | 28¢ | $22k | 09-20 23:05 UTC |
| Seattle vs Arizona: Total Points — Over 41.5 points scored | kalshi | 50¢ | $21k | 09-20 23:25 UTC |
| GB Packers vs NY Jets — Green Bay | kalshi | 62¢ | $20k | 09-20 20:00 UTC |
| MIN Vikings vs CHI Bears — Minnesota | kalshi | 35¢ | $18k | 09-20 20:00 UTC |
The 20 most active of 834, by 24h volume across both venues, refreshed every few minutes. A market listed on only one venue has no cross-venue price to compare against — which is true of most of them.
What two venues' prices are worth
A gap between Kalshi and Polymarket on the same NFL market is usually fees, depth, or two contracts that settle differently — not free money. The arbitrage guide shows today's gaps before and after fees, and the fee page shows why the cost peaks near 50¢.
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