Cleveland Guardians vs. Philadelphia Phillies

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Active sub-markets

Market context

The Cleveland Guardians travel to Philadelphia on 24 May for a day game against the Phillies, with the 68% implied probability favouring Cleveland. The matchup falls within the settlement window closing 31 May, allowing for rescheduling should weather or other factors intervene. Early-season form will be the primary driver: Cleveland finished 2024 as AL Central champions with a 92–70 record and strong pitching depth, whilst Philadelphia won the NL East at 95–67 but has historically struggled in May matchups against AL Central opponents. Head-to-head records between these franchises show modest variance year-on-year, with neither club holding a decisive recent edge.

The 68% probability reflects Cleveland's marginal advantage in starting rotation matchups and bullpen availability as of late May. Traders should monitor roster updates through 23 May—specifically injury reports on key position players and designated hitter availability for both sides. Phillies' recent performance against left-handed starters and Cleveland's platoon decisions will influence late-line movement. Weather forecasts for Philadelphia on 24 May carry weight given the 1:35 PM ET start; afternoon games in late May occasionally face rain delays that could extend the settlement window. Any suspension or roster alteration announced within 48 hours of first pitch typically shifts the line by 3–5 percentage points, depending on player significance and replacement depth.

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

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.

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.

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.