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Tampa Bay Rays vs. New York Yankees: O/U 8.5

Post ☰ See all 3 outcomes in Tampa Bay vs New York Y: Total Runs →
KalshiPolymarket ✓ Verified same-resolution Closes Sep 24, 2026
LIVE PRICES — YES
KalshiBEST YES PRICETrade ↗
32¢ last
BidAsk
YES31¢32¢
NO68¢69¢
$624 volume
PolymarketTrade ↗
36¢ last
BidAsk
YES30¢31¢
NO69¢70¢
$1,489 volume
Cross-venue spread 4.0¢· active arbitrage window
30-DAY PRICE HISTORY
HOW THIS RESOLVES

Kalshi — primary rule

If Tampa Bay and New York Y collectively score more 8.5 runs in the Tampa Bay vs New York Y professional baseball game originally scheduled for Sep 23, 2026 at 7:05 PM EDT, then the market resolves to Yes.

Polymarket — resolution criteria

In the upcoming MLB game between the Tampa Bay Rays and New York Yankees, scheduled for September 23 at 7:05 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and New York Yankees combine to score 9 or more runs in this game. If the combined total is less than 9, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Show full rules
STATS
Cross-venue spread4.0¢
Kalshi last32¢
Polymarket last36¢
Venues2
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The same question at a different strike, deadline or outcome — related, not the same contract. Prices are the latest YES.