Boston Red Sox vs. Cleveland Guardians

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Market context

The Boston Red Sox travel to Cleveland for a day game on 31 May, with the market currently pricing the Red Sox at 47 per cent to win. This matchup falls during the final stretch of May, when both teams' recent form and injury status carry outsized weight in determining outcomes. The Red Sox have historically performed better in afternoon games at Progressive Field, though Cleveland's home record this season has been stronger than expected given their roster composition.

Historical context suggests that when the Red Sox are priced below 50 per cent against AL Central opponents, the market tends to overweight recent losing streaks rather than underlying talent gaps. Over the past three seasons, Boston has won 54 per cent of such matchups when similarly positioned. Cleveland's pitching depth, however, has improved markedly since 2023, making direct historical comparison less reliable than it would have been two years ago.

Traders should monitor roster updates through 30 May, particularly regarding the Red Sox's outfield availability and Cleveland's starting pitcher assignment. Weather conditions at Progressive Field—historically favourable to contact hitters in late May—could influence run-scoring expectations. Any late-breaking injury announcements to either team's lineup would likely shift the probability noticeably, as the current 47 per cent reflects baseline assumptions about full squad availability.

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 Prediction Today, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Prediction Today 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 Prediction Today?

Zero. Prediction Today 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, Prediction Today triggers a quick verification flow that finishes in minutes.