Philadelphia Phillies vs. Baltimore Orioles

Platform comparison

Market context

The game is scheduled for Philadelphia Phillies against Baltimore Orioles in Baltimore, and the market pays out on which club wins the completed game; a **YES** share is effectively a bet on the Phillies, while a **NO** share is a bet on the Orioles. If the game is postponed, the market stays open until it is played, and if it is cancelled without a make-up or ends level, it settles 50-50. That structure matters because the price is about *the result of one specific contest*, not season strength or playoff outlook.

The current crowd-implied probability of 56% for YES points to a modest lean towards Philadelphia, but not a strong favourite. That is broadly in line with the pre-game market showing the Phillies around a slight moneyline favourite at -144, while ESPN’s live win-probability snapshot at the time of lookup had the Phillies at 52.4% and the Orioles at 47.6%.[7][1] Recent head-to-head form has been volatile: Baltimore beat Philadelphia 6-4 on Friday after rallying late, while the Phillies had also taken a 13-3 win over the Orioles in August 2025.[2][6]

For traders, the main catalysts are the confirmed line-ups, the starting pitcher announcement, and any weather or scheduling update that could affect whether the game starts on time or is pushed back. ESPN’s preview listed Philadelphia’s starter as TBD for the latest meeting, which is the kind of uncertainty that can move short-dated probabilities quickly once rotations are confirmed.[7] Because the market remains open if postponed, the biggest operational risk is not only who is in form, but whether the game is completed as scheduled and with the announced pitchers taking the ball.[7][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Philadelphia Phillies vs. Baltimore Orioles across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Market UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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 Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.