TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 4, 4:24 PM EST
Kalshi
A professional baseball game between Baltimore and Boston is scheduled for June 4, 2026 at 1:35 PM EDT, with particular focus on whether the game extends to extra innings.
Prediction market odds on Kalshi often reflect different incentive structures than traditional sportsbooks. While sportsbooks build in fixed margins and adjust lines to balance action, prediction markets like Kalshi are driven purely by trader consensus and real-money risk. Sportsbooks may move lines faster in response to sharp money or injury news, whereas prediction markets aggregate dispersed information over time. For Baltimore vs Boston: Extra Innings, comparing Kalshi implied probabilities to major sportsbook lines can reveal where the crowd disagrees on extra-inning likelihood. Prediction markets typically offer tighter spreads and higher accuracy on niche outcomes like this one.
On Kalshi, Baltimore vs Boston: Extra Innings is priced as a binary contract reflecting the probability that the game extends into extra innings. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy or sell shares at prices between $0 and $1, with each contract worth $1 at resolution if the outcome occurs. The current market price reflects the collective belief of all active traders on Kalshi. As game time approaches and new information emerges—such as lineup changes, weather updates, or bullpen availability—the price adjusts continuously. Liquidity and trading volume on Kalshi determine how quickly prices respond to breaking news about this specific Baltimore-Boston matchup.
Several factors could shift the market price for this extra-innings contract. Bullpen depth and fatigue levels for both teams are critical—if either side's relief pitchers are overworked or unavailable, extra innings become more likely. Starting pitcher performance and early offensive output will influence whether the game remains close heading into the late innings. Weather conditions, particularly wind direction and temperature, can affect ball carry and scoring pace. Injury updates to key position players or relievers announced before game time could alter market expectations. Breaking news about lineup changes, trades, or roster decisions may also trigger repricing as traders reassess the probability of a tight, extended contest.