New York Yankees vs. Baltimore Orioles

Platform comparison

Market context

The New York Yankees face the Baltimore Orioles on 20 August at 6:35 PM ET in a regular-season matchup with settlement occurring by 27 August. The 52% crowd-implied probability currently favours the Yankees, reflecting their historical edge in head-to-head records and recent performance metrics. This probability sits notably higher than the typical 50-50 baseline, suggesting meaningful confidence in a Yankees victory amongst prediction market participants.

Historical context reveals the Yankees hold a substantial advantage in their all-time series against Baltimore, with recent seasons showing the Yankees winning approximately 55–60% of regular-season contests between the two clubs. When examining comparable August matchups between division rivals, markets typically price the stronger team at 53–58% depending on pitching assignments and roster health. The current 52% reading appears conservative relative to the Yankees' typical pricing in similar fixtures, suggesting either elevated uncertainty about starting pitcher availability or recent Baltimore momentum that has narrowed traditional expectations.

Traders should monitor roster updates through mid-August, particularly injury reports affecting either team's rotation or key position players. Sportsbook moneyline odds should be cross-referenced against this market probability; meaningful divergence between conventional betting lines and the 52% figure would indicate whether prediction markets are pricing information differently than traditional oddsmakers. Weather forecasts for the game date and any schedule adjustments affecting rest days for either pitching staff represent material catalysts that could shift the probability meaningfully in the final week before settlement.

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 Kalshi vs Polymarket, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

Do I need to KYC for this market?

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

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.