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: Jul 1, 12:19 AM EST
Kalshi
This market tracks whether the San Francisco Giants and Arizona Diamondbacks professional baseball game scheduled for June 30, 2026 at 9:40 PM EDT will require extra innings to determine a winner. Extra innings occur when the game is tied after nine regulation innings.
If San Francisco and Arizona go to extra innings in the San Francisco vs Arizona professional baseball game originally scheduled for Jun 30, 2026 at 9:40 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they serve different purposes and audiences. Sportsbooks set lines to balance action and manage risk, while prediction markets like this one reflect trader consensus on the true probability of an outcome. This market aggregates the views of many independent traders with real money at stake, which can reveal insights that differ from traditional betting lines. Comparing the two can highlight where the crowd sees value or where conventional oddsmakers may be mispricing the likelihood of extra innings.
On Kalshi, this market is priced through a continuous order-book mechanism where traders buy and sell shares representing yes or no outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the market's aggregate belief in the probability of extra innings occurring in the SF vs Arizona game. As new information emerges—such as lineup announcements, weather updates, or injury reports—traders adjust their positions, and the price moves to reflect the updated consensus. This dynamic pricing ensures the market stays current with real-world developments leading up to first pitch.
This market resolves around Jul 1, 2026, once the SF vs Arizona game concludes and the final result is verifiable from credible public sources. The outcome hinges on whether the game extends into extra innings or concludes within the standard nine-inning format. Resolution occurs after the game ends and the official result is confirmed, ensuring all traders have clarity on the final state. No further trading occurs after the game is complete and the outcome is locked in.
Several factors can shift trader positioning before game time. Lineup announcements, particularly the availability of key position players or relief pitchers, often trigger price movement since roster depth affects game length. Weather conditions—wind speed and direction at the ballpark—influence whether the game favors hitters and produces higher-scoring play, which correlates with extra-inning likelihood. Injury updates, recent team performance trends, and historical head-to-head matchup data also inform trader decisions. As game time nears, any last-minute roster changes or weather developments can cause sharp repricing in this market.