Cleveland Guardians vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

On 23 May 2026, the Cleveland Guardians will travel to Philadelphia to face the Phillies in a regular-season Major League Baseball fixture, with first pitch scheduled for 4:05 PM Eastern Time. The market resolves to the Guardians if they win; to the Phillies if Philadelphia prevails. The current crowd-implied probability of 39% for a Guardians victory reflects moderate confidence in the home team, though late May matchups between divisional rivals often hinge on roster availability and recent form rather than historical strength alone.

The Guardians have demonstrated competitive consistency in recent seasons, whilst the Phillies maintain a higher payroll and deeper offensive lineup. Historical head-to-head records between these franchises show relatively balanced outcomes, with neither team commanding a decisive edge. The 39% probability suggests traders are pricing in Philadelphia's home-field advantage and recent regular-season performance, though this remains a competitive fixture where pitching matchups and injury status carry substantial weight.

Traders should monitor roster announcements through mid-May, particularly any injuries to key position players or starting pitchers for either side. Weather conditions at Citizens Bank Park on game day—temperature, wind direction, and precipitation—can materially affect scoring outcomes. The settlement window closes 30 May 2026 at 20:05 UTC, allowing for postponement resolution should weather or scheduling conflicts delay the fixture. Under German GlüStV and US CFTC frameworks, this market remains accessible to traders in jurisdictions permitting sports prediction markets; the "no-KYC up to $1,500" threshold applies to aggregate exposure, meaning traders can access this specific market without identity verification provided their total platform holdings remain below that limit.

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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.

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.