Cleveland Guardians vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians travel to Philadelphia on 23 May for an afternoon fixture against the Phillies, with Polymarket currently pricing a Guardians victory at 38 per cent (USDC on Polygon). This represents a substantial underdog position, reflecting the Phillies' stronger recent form and home-field advantage in late May. The settlement window extends to 30 May at 20:05 UTC, allowing for postponements common in the Northeast corridor during spring weather patterns.

Historical matchups between these franchises show the Phillies have maintained a slight edge over recent seasons, though the Guardians' 2023 World Series run demonstrated their capacity to perform in high-stakes situations. The current probability aligns with typical home-team advantages in baseball markets, where hosting teams command roughly 53–55 per cent win probability in standard conditions. The Guardians' recent record and pitching depth will determine whether the 38 per cent reflects fair value or undervaluation.

Traders should monitor starting pitcher assignments, which typically confirm 48–72 hours before first pitch. Injury reports from both rosters—particularly any developments affecting the Phillies' outfield depth or the Guardians' rotation—will shift conditional token pricing materially. Weather forecasts for Philadelphia on 23 May warrant attention, as afternoon games in that region can face delays or cancellations that trigger the market's postponement clause. Recent performance streaks heading into late May will provide the most reliable signal for recalibrating positions against the current 38 per cent mark.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

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

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.

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.