Washington Nationals vs. Cleveland Guardians

Platform comparison

Active sub-markets

Market context

The Nationals host the Guardians on 25 May at 6:10 PM ET in a regular-season matchup. The 39% crowd probability favours Cleveland, reflecting the Guardians' stronger recent form and roster depth. This single-game resolution carries standard MLB conditions: postponement extends the market window, whilst cancellation or a tie triggers a 50-50 split.

Cleveland's 2024 campaign established them as a competitive AL Central contender, and their pitching depth remains a structural advantage in head-to-head matchups. Washington has shown inconsistency this season, with their win-loss record and run differential historically placing them below .500 in comparable May windows. The 39% reading suggests traders view the Nationals as underdogs but not prohibitive ones—typical for a home team facing a stronger opponent without significant recent momentum shifts.

Traders should monitor lineup announcements and bullpen availability in the 24 hours before first pitch. Weather conditions at Nationals Park—particularly wind direction and temperature—can materially affect scoring outcomes in late May. Any late injury reports affecting Cleveland's starting pitcher or Washington's primary offensive contributors will likely shift the probability. Recent form matters: if either team has won or lost three consecutive games heading into 25 May, that streak often correlates with modest probability adjustments in single-game markets. The settlement window closes 1 June at 22:10 UTC, allowing for weather-related postponements typical of the season.

Methodology

This page reviews Washington Nationals vs. Cleveland Guardians 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

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.

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.

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 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.