Miami Marlins vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

The Philadelphia Phillies travel to Miami for a regular-season matchup on 17 June, with the settlement window extending to 24 June at 17:05 UTC. The 97% implied probability favouring a Phillies victory reflects their standing as a stronger franchise this season, though the market's extreme skew warrants scrutiny given the binary nature of single-game outcomes and the seven-day settlement window that accommodates potential postponements.

Historical comparison to similar MLB matchups shows that crowd-implied probabilities above 95% for regular-season games rarely account for injury announcements or late roster changes that emerge between market opening and first pitch. The Phillies' recent form and playoff positioning typically command such odds, but the Marlins' home-field advantage and the inherent volatility of baseball—where a single pitcher's performance can shift expected value significantly—have historically created mispricing at these extremes. Comparable markets on btc-prediction.bet with similar probability distributions have occasionally resolved against consensus when unexpected roster news surfaced within 48 hours of game time.

Traders should monitor official MLB injury reports through 16 June, particularly regarding starting pitchers and key position players for both sides. Weather conditions in Miami during mid-June can affect game dynamics; humidity and afternoon thunderstorms occasionally influence play. The settlement mechanism's 50-50 resolution clause for cancellations or ties introduces minimal tail risk given the low probability of either outcome in modern MLB. USDC settlement occurs post-resolution confirmation against official MLB records, with typical confirmation within 24 hours of game completion.

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

Is this market available outside the US?

BTC Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

What does it cost to trade on BTC Prediction?

Zero. BTC Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.