Houston Astros vs. Toronto Blue Jays

Platform comparison

Active sub-markets

Market context

The underlying real-world event is the Major League Baseball game between the Houston Astros and the Toronto Blue Jays, played at Rogers Centre on 22 June 2026, which the Blue Jays won 4–2 after Kazuma Okamoto’s home run and a strong bullpen performance[1][4]. This result means the market resolving to “Houston Astros” is now impossible, aligning with the current crowd-implied probability of 0% YES, as the game has already concluded and the outcome is fixed[1].

Historically, prediction markets for completed sporting events that have already been settled show immediate probability convergence to 0% or 100% once the final result is official, as seen in similar MLB markets where late-game upsets erased prior odds[1][3]. Comparable cases include the 2024 World Series markets, where post-game settlements triggered instant probability shifts, confirming that no further trading is possible once the event is closed[1].

Traders should monitor any official MLB announcements regarding game cancellations or make-up dates, though none are expected given the game’s completion[1]. Recent coverage from The Athletic confirms the final box score and notes no pending dependencies, reinforcing that the market is settled and inaccessible for further action[8]. The German GlüStV and US CFTC frameworks treat such settled markets as non-tradable, while the “no-KYC up to $1,500” rule has no relevance here since the event is already resolved and the market cannot be entered[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Houston Astros vs. Toronto Blue Jays on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Legal UK triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.