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Boston Red Sox vs. Pittsburgh Pirates: O/U 8.5

Post
KalshiPolymarket ✓ Verified same-resolution Closes Aug 16, 2026
LIVE PRICES — YES
KalshiTrade ↗
48¢ last
BidAsk
YES47¢48¢
NO52¢53¢
$11,279 volume
PolymarketBEST YES PRICETrade ↗
47¢ last
BidAsk
YES47¢48¢
NO52¢53¢
$6,936 volume
Cross-venue spread 1.0¢
30-DAY PRICE HISTORY
HOW THIS RESOLVES

Kalshi — primary rule

If Boston and Pittsburgh collectively score more 8.5 runs in the Boston vs Pittsburgh professional baseball game originally scheduled for Aug 16, 2026 at 1:35 PM EDT, then the market resolves to Yes.

Polymarket — resolution criteria

In the upcoming MLB game between the Boston Red Sox and Pittsburgh Pirates, scheduled for August 16 at 1:35 PM ET: This market will resolve to "Over" if the Boston Red Sox and Pittsburgh Pirates 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 spread1.0¢
Kalshi last48¢
Polymarket last47¢
Venues2
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