TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 9, 7:55 PM EST
Kalshi
A professional baseball game features two teams competing, with focus on their combined scoring output during the first five innings.
Prediction market odds on Kalshi reflect real-time trader consensus and often differ from traditional sportsbook lines because they aggregate distributed participant beliefs rather than being set by a single oddsmaker. Sportsbooks adjust lines to balance liability and extract margin, while prediction markets price based on supply and demand from many independent traders. For this first 5 innings total, comparing Kalshi odds to major sportsbooks can reveal whether the market is pricing the outcome more bullishly or bearishly than conventional betting venues, offering insight into where smart money may be positioned.
The market resolves on Jun 10, 2026, immediately after the completion of the first five innings of the Boston vs Tampa Bay game. The outcome is determined by the official combined run total scored by both teams through the end of the fifth inning, as recorded by MLB. Once the fifth inning concludes, the final run count is locked in and the contract settles based on whether that total meets the specified threshold. No further scoring or game events after the fifth inning affect this market.
Key catalysts include the official announcement of starting pitchers for both teams, as their recent form and strikeout rates heavily influence early-inning scoring. Lineup changes, injuries to key hitters, or weather conditions at the ballpark can shift expectations for run production. Real-time game action—early hits, walks, errors, or quick outs—will drive sharp repricing as traders react to actual performance. Pre-game betting action on the full-game moneyline and total may also signal market sentiment about offensive firepower, influencing how traders price the first 5 innings subset.