MLS odds on Kalshi vs Polymarket
Major League Soccer, priced on both venues. Right now there are 52 open MLS markets — 45 on Kalshi, 7 on Polymarket — carrying $59k of volume in the last 24 hours.
Open MLS markets, by volume
| Market | Venue | Yes | 24h volume | Closes |
|---|---|---|---|---|
| Miami vs San Diego FC — Miami | kalshi | 66¢ | $22k | 09-21 02:00 UTC |
| Spread: Inter Miami CF (-1.5) | polymarket | 44¢ | $13k | 09-20 23:00 UTC |
| Colorado vs Seattle — Colorado | kalshi | 50¢ | $6k | 09-20 04:30 UTC |
| Will Chicago Fire FC win on 2026-07-16? | polymarket | 45¢ | $3k | 10-07 00:30 UTC |
| Will Colorado Rapids SC win on 2026-09-19? | polymarket | 50¢ | $3k | 09-20 01:30 UTC |
| Salt Lake vs Vancouver — Vancouver | kalshi | 50¢ | $2k | 09-20 04:30 UTC |
| Will Vancouver Whitecaps FC win on 2026-07-16? | polymarket | 33¢ | $1k | 10-07 00:30 UTC |
| Will Chicago Fire FC vs. Vancouver Whitecaps FC end in a draw? | polymarket | 28¢ | $1k | 10-07 00:30 UTC |
| Will New York Red Bulls win on 2026-09-18? | polymarket | 24¢ | $1k | 09-18 23:30 UTC |
| San Jose vs Los Angeles F — Los Angeles F | kalshi | 44¢ | $848 | 09-20 02:30 UTC |
| Will San Jose Earthquakes win on 2026-09-19? | polymarket | 34¢ | $770 | 09-19 23:30 UTC |
| Nashville vs Chicago Fire — Nashville | kalshi | 54¢ | $571 | 09-20 04:30 UTC |
| New England vs Orlando — Orlando | kalshi | 26¢ | $562 | 09-20 02:30 UTC |
| Saint Louis vs Toronto — Saint Louis | kalshi | 57¢ | $517 | 09-20 03:30 UTC |
| New York City vs New York RB — New York City | kalshi | 54¢ | $358 | 09-19 02:30 UTC |
| Miami vs San Diego FC — San Diego FC | kalshi | 18¢ | $284 | 09-21 02:00 UTC |
| Kansas City vs Philadelphia — Philadelphia | kalshi | 59¢ | $232 | 09-20 03:30 UTC |
| Nashville vs Chicago Fire — Chicago Fire | kalshi | 24¢ | $202 | 09-20 04:30 UTC |
| Portland vs Atlanta — Portland | kalshi | 49¢ | $192 | 09-20 05:30 UTC |
| San Jose vs Los Angeles F — San Jose | kalshi | 33¢ | $185 | 09-20 02:30 UTC |
The 20 most active of 52, 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 MLS 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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