Live prediction market odds for St. Louis Cardinals vs. Kansas City Royals (8:15 PM ET). Compare prices across Kalshi and Polymarket.
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Kalshi / Polymarket
2026-06-19
St. Louis Cardinals vs. Kansas City Royals (8:15 PM ET) — MLB game scheduled for 2026-06-19. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
St. Louis Cardinals leads the “St. Louis Cardinals vs. Kansas City Royals (8:15 PM ET)” event at 49.5% implied probability, followed by Kansas City Royals at 48.3%. A 2.5% cross-platform spread signals an active arbitrage window.
St. Louis Cardinals vs. Kansas City Royals (8:15 PM ET) is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). St. Louis Cardinals leads at 50% implied probability, making it the market favorite. Other contenders include Kansas City Royals at 48%.
St. Louis Cardinals currently leads at 50% implied probability. Behind St. Louis Cardinals, Kansas City Royals at 48% are the next closest contenders. A 2.5% spread across platforms indicated moderate disagreement on the latest developments.
Here are the latest odds across Kalshi, Polymarket: St. Louis Cardinals: 49¢ on Kalshi, 51¢ on Polymarket. Kansas City Royals: 47¢ on Kalshi, 50¢ on Polymarket. The 2.5% spread shows moderate platform divergence worth monitoring for potential opportunities.
A price of 50¢ means the market estimates a 50% probability that St. Louis Cardinals will be the outcome. Buying one share at 50¢ pays out $1.00 if correct — a 100% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.
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Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Kansas City wins the St. Louis vs Kansas City professional baseball game originally scheduled for Jun 19, 2026 at 8:15 PM EDT, then the market resolves to Yes.
The following market refers to the St. Louis vs Kansas City professional baseball game originally scheduled for Jun 19, 2026 at 8:15 PM EDT. If this game is postponed or delayed, the market will remain open and close after the rescheduled game has finished (within two days). If the game is cancelled or rescheduled to over two days away, the market will resolve to a fair price in accordance with the rules.
PolymarketIn the upcoming MLB game between the St. Louis Cardinals and Kansas City Royals, scheduled for June 19 at 8:15PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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.
St. Louis Cardinals
49.5% avg
