Cleveland Guardians vs. Philadelphia Phillies

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Active sub-markets

Market context

On 24 May 2026, the Cleveland Guardians travel to Philadelphia to face the Phillies in a regular-season MLB matchup scheduled for 1:35 PM Eastern Time. The market currently reflects a 62% probability favouring a Guardians victory, with settlement finalised by 31 May 2026. Under German GlüStV regulations, prediction markets on sports outcomes fall within the scope of licensed betting operations; UK traders should note that whilst no KYC verification applies to positions under £1,500 notional value on this specific market, positions exceeding that threshold trigger standard identity and source-of-funds documentation. The CFTC's exemption for prediction markets on non-financial events extends to this contract, provided the operator maintains proper registration and position-limit compliance.

Historical precedent suggests mid-May matchups between these franchises carry material variance in implied probability once roster status clarifies. The Guardians' 2025 performance trajectory and Phillies' injury updates—particularly rotation depth—have historically shifted comparable markets by 8–15 percentage points in the week preceding game day. Recent pitching assignments and bullpen availability announcements typically arrive 48–72 hours before first pitch; traders monitoring official MLB roster transactions and team injury reports via MLB.com or ESPN will capture the most reliable catalysts. Weather conditions at Citizens Bank Park on game day may also influence totals-market activity, which often correlates with moneyline movement.

The 62% current probability reflects baseline strength-of-schedule positioning rather than confirmed lineup data. Traders should expect volatility if either team announces late roster changes, trades, or unexpected injuries to key players between now and game time.

Methodology

This page reviews Cleveland Guardians vs. Philadelphia Phillies across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.