Baltimore Orioles vs. Houston Astros

Platform comparison

Market context

The Baltimore Orioles defeated the Houston Astros 5–2 at Daikin Park on Sunday, 19 July, extending their season-best winning streak to seven games [1]. Brandon Young pitched seven innings for one run while Coby Mayo contributed a home run, securing the victory for the visitors [1]. With the game already completed and the result confirmed, the 100% YES crowd-implied probability on the prediction market reflects the settled outcome rather than a live forecast [2].

Historical precedents for post-game prediction markets show that contracts locking in at 100% probability after a result is official typically face no settlement disputes, provided the governing body’s final statistics are unambiguous [1]. In comparable MLB cases where a game concluded with a clear winner and no postponement complications, markets resolved instantly against the official box score, mirroring the current Orioles contract’s trajectory [2]. Such divergence between live sportsbook lines (which closed at Orioles +106) and the post-game prediction-market certainty highlights the transition from speculative pricing to factual resolution [7].

Traders should monitor the official MLB final statistics release to confirm no retroactive changes, though the AP and ESPN box scores already align on the 5–2 result [1][3]. No further catalysts exist for this contract, as the settlement window extends only to accommodate potential administrative delays, not new game events [6]. The primary dependency remains the governinɡ body’s recognition of the final score, which is already consistent across major sports data providers [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets UK, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.