Cleveland Guardians vs. Philadelphia Phillies

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Market context

The Cleveland Guardians are scheduled to play the Philadelphia Phillies at Citizens Bank Park on Friday night, with the market pricing Cleveland at 39% to win. That implies a modest underdog position for a Guardians side that enters with a 30-22 record against a Phillies team sitting 25-25, so the crowd view is already leaning against the home side despite Philadelphia being listed as the favourite by bookmakers. In similar MLB moneyline-style markets, probabilities in the 35-45% range usually move most on starting pitching confirmation and late line-up changes rather than season record alone.

Recent context points to a tighter than usual spot for the Phillies, whose CBS Sports team page listed them around -184 to -187 with a low total of 6.5 ahead of the series opener, suggesting the market expects a relatively low-scoring game. ESPN’s matchup page also showed the Guardians stronger in runs scored and on-base percentage, while Philadelphia has the edge in slugging and home runs. That split is consistent with a market that is not treating Cleveland as a long shot, but rather as a live road underdog if the pitching matchup holds up.

For traders, the main catalysts are the confirmed starters, the final line-ups, and any weather delay risk, because a postponed game would keep the market open until completion, while a cancellation would force a 50-50 settlement. On-chain, the contract simply settles in USDC according to the official result, so the key edge is in tracking pre-game information rather than any crypto-specific driver; BTC and ETH only matter here if broader risk sentiment is moving prediction market liquidity, which would be secondary to the baseball inputs.

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Methodology

This page reads Cleveland Guardians vs. Philadelphia Phillies on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed for comparison. Every CTA routes to PolyGram, which mirrors the Polymarket order book directly.

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?

PolyGram 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 PolyGram?

Zero. PolyGram 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.