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: Jul 16, 7:45 PM EST
Polymarket
This event group tracks the outcome of a single MLB matchup between the Milwaukee Brewers and St. Louis Cardinals, including moneyline, spread, totals, and inning-specific betting markets. The aggregated consensus across Polymarket and Kalshi shows 100.0% probability for the game occurring as scheduled. Resolution will be determined by official MLB records. Watch for the scheduled game on July 9, 2026 at 7:45 PM ET, as market resolution will depend on the final official result posted by MLB.
In the upcoming MLB game between the Milwaukee Brewers and St. Louis Cardinals, scheduled for July 9 at 7:45PM ET: This market will resolve to "Milwaukee Brewers" if the Milwaukee Brewers win the game. This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. 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, or ends in a tie, this market will resolve 50-50. 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.
The Milwaukee vs St. Louis game scheduled for July 9, 2026 at 7:45 PM EDT will be evaluated based on the score at the end of the first 7 innings. If Milwaukee leads after 7 innings, the Milwaukee outcome resolves to Yes and all other outcomes resolve to No. If St. Louis leads after 7 innings, the St. Louis outcome resolves to Yes and all other outcomes resolve to No. If the score is tied after 7 innings, the Tie outcome resolves to Yes and both team outcomes resolve to No. If the game is postponed or delayed, the market remains open and closes after the rescheduled game concludes within two days.
Prediction markets like Polymarket and Kalshi are often cited by researchers as accurate price discovery mechanisms because traders risk real capital on outcomes. Sportsbooks, by contrast, set odds to balance their book and lock in profit margins, which can create gaps versus true probability. Prediction market odds tend to reflect crowd belief more directly, while sportsbooks may shade lines based on public betting patterns. Comparing this market's odds to major sportsbooks can reveal value opportunities, though prediction markets typically have lower liquidity and wider spreads than established betting venues.
Polymarket and Kalshi operate under different regulatory frameworks and attract different trader demographics, which can lead to pricing divergence. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Polymarket may focus on full-game outcomes, while Kalshi's market structure emphasizes first-seven-innings results, creating distinct risk profiles. Liquidity depth, user base composition, and fee structures also influence how quickly each platform reprices in response to news. Monitoring both venues helps you identify arbitrage opportunities or confirm which interpretation of the matchup commands broader consensus.
Injury announcements, lineup confirmations, and weather updates are primary catalysts that shift odds in this market. Starting pitcher changes, bullpen availability, and recent team performance streaks also drive repricing. Betting flow from sharp money can signal where informed traders are positioning. Breaking news about player health or roster decisions often triggers rapid price movement on both platforms. Monitor team news feeds and sports injury reports in the days leading up to game time for the most impactful signals.