Skip to content
Scanner / All markets / Sports

Tampa Bay Rays vs. Colorado Rockies: O/U 12.5

KalshiPolymarket Closes Aug 5, 2026
LIVE PRICES — YES
KalshiTrade ↗
30¢ last
BidAsk
YES39¢40¢
NO60¢61¢
$3,544 volume
PolymarketBEST YES PRICETrade ↗
24¢ last
BidAsk
YES23¢24¢
NO76¢77¢
$3,885 volume
Cross-venue spread 6.0¢· active arbitrage window
CROSS-VENUE ARBITRAGE

Buy YES on Polymarket and NO on Kalshi — total cost 85¢ per $1 payout, locking +15.0¢ per contract before fees.

30-DAY PRICE HISTORY
HOW THIS RESOLVES

Kalshi — primary rule

If Tampa Bay and Colorado collectively score more 12.5 runs in the Tampa Bay vs Colorado professional baseball game originally scheduled for Aug 4, 2026 at 8:40 PM EDT, then the market resolves to Yes.

Polymarket — resolution criteria

In the upcoming MLB game between the Tampa Bay Rays and Colorado Rockies, scheduled for August 4 at 8:40 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Colorado Rockies combine to score 13 or more runs in this game. If the combined total is less than 13, 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 spread6.0¢
Kalshi last30¢
Polymarket last24¢
Venues2
TRACK THIS MARKET

Get an email the moment the price or edge moves — watchlists, whale alerts and the full scanner are free to start.

Start free — no card
RELATED MARKETS
San Diego vs Arizona: Total Runs — Over 8.5 runs scoredValorant: Trace Esports vs A Team (BO3) - VCT China Stage 2 Play-InsCounter-Strike: BESTIA vs METANOIA WOLVES - Map 1 WinnerValorant: Natus Vincere vs Joblife (BO3) - VCT EMEA Play-InsLoL: Shark Attack vs DIA Ozarox Esports (BO3) - TCL Play-InsLoL: BoostGate Esports vs SU Esports (BO3) - TCL Play-InsLoL: RED Academy vs Team Solid (BO1) - Circuito Desafiante Regular SeasonToronto vs Golden State — Toronto