Washington Nationals vs. Cleveland Guardians

Platform comparison

Active sub-markets

Market context

The Washington Nationals travel to Cleveland on 26 May for an evening fixture against the Guardians, with the market currently pricing the home side at 55 per cent implied probability. Both clubs occupy middling positions in their respective divisions at the settlement window's approach, though Cleveland has demonstrated more consistent offensive output through May. The Guardians' bullpen has ranked in the upper half of the American League for ERA, whilst Washington's pitching depth has been tested by injuries to key rotation members.

Historical matchups between these franchises show marginal home-field advantage; since 2020, Cleveland has won 52 per cent of games played at Progressive Field against National League opponents, a figure that aligns closely with the current 55 per cent crowd probability. The Nationals' road record through late May typically sits 3–5 percentage points below their home performance, suggesting the 45 per cent implied for an away victory reflects realistic travel fatigue rather than fundamental weakness.

Traders should monitor Cleveland's starting pitcher assignment and any late roster moves from Washington's injury list before first pitch. Beat reporters covering the Guardians have noted inconsistency in their middle-order production, which could shift if key hitters return from minor ailments. The settlement window extends to 2 June, allowing time for postponements or make-up scheduling should weather interrupt the original fixture. Recent weather patterns in northern Ohio during late May have shown typical spring variability, though no significant storm systems were forecast at the time of market opening.

Methodology

We track Washington Nationals vs. Cleveland Guardians on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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 Sport Prediction, 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?

Sport Prediction 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 Sport Prediction?

Zero. Sport Prediction 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.