Cleveland Guardians vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians travel to Philadelphia on 24 May for a regular-season matchup against the Phillies, with first pitch at 1:35 PM ET. The market settles on the official final result; postponements extend the resolution window to 31 May, whilst cancellations without rescheduling or ties trigger a 50-50 split. The 78% crowd probability favours Cleveland, reflecting either perceived pitching advantage, recent form, or home-field disadvantage priced into Philadelphia's odds.

Historically, mid-May regular-season games between these franchises show modest predictive value from preseason projections; both clubs' records typically diverge from spring forecasts by this point. The Guardians' 2023 World Series run and subsequent competitive rosters have shifted market perception of Cleveland as a playoff-capable team, whereas Philadelphia's National League East positioning creates volatility in head-to-head matchups. Comparable games from the past two seasons suggest that starting pitcher quality and bullpen availability drive 60–70% of outcome variance in this fixture.

Traders should monitor roster updates through 24 May, particularly injury reports affecting starting pitchers or key relievers. Weather conditions at Citizens Bank Park—wind direction and temperature affect fly-ball outcomes materially—warrant checking forecasts within 48 hours of game time. Recent trades or call-ups to either roster, announced via MLB.com or team channels, can shift implied probabilities sharply. The settlement window's extension to 31 May accommodates rain delays common in late May, though cancellation without rescheduling remains statistically rare in modern MLB scheduling.

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

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

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.

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.

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.