TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 29, 9:59 PM EST
Kalshi
This market tracks whether any run is scored during the opening inning of the San Francisco Giants versus Arizona Diamondbacks matchup scheduled for June 29, 2026. Early offensive production often sets the tone for baseball games and can indicate which team's pitcher is struggling or which offense is particularly sharp.
If either team scores a run in the first inning of the San Francisco vs Arizona professional baseball game originally scheduled for Jun 29, 2026 at 9:40 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by trader belief and real-money conviction. Traders here are betting their own capital on the outcome, which can create sharper, more efficient pricing than traditional sportsbooks in some cases. Comparing this market's odds to major sportsbook lines reveals whether professional and casual traders see the first inning differently than bookmakers do.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares representing each outcome. 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 collective probability assigned by active traders, with bids and asks continuously updated as new positions enter the market. Traders profit by correctly predicting whether a run scores in the first inning, and the spread between buy and sell prices tightens as more liquidity flows in. This continuous price discovery process ensures the odds stay responsive to new information and trading demand.
This market resolves around Jun 30, 2026, once the San Francisco versus Arizona game concludes and the first inning result is final. The outcome is confirmed against credible public sources covering the game, ensuring accuracy and transparency. Traders holding positions will see their contracts settle based on whether a run was scored during the opening inning. Resolution happens automatically after the event is verifiable, with no manual intervention required.
Several factors can shift odds before game time: starting pitcher announcements, recent team performance trends, weather conditions at the stadium, and injury updates to key batters or pitchers. Line-up changes announced hours before first pitch often trigger sharp moves, as do unexpected roster decisions. Trading volume itself can accelerate price swings if large bets suddenly enter the market. Live action during the game—early hits, walks, or defensive plays—will drive final adjustments right up until the first inning concludes, making this market highly responsive to real-time developments.