Atlanta Braves vs. Boston Red Sox

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Active sub-markets

Market context

The Atlanta Braves face the Boston Red Sox on 28 May at 4:10 PM ET in a regular-season Major League Baseball fixture. Current crowd-implied probability of 63% for a Braves victory reflects their stronger 2024 divisional standing and home-field advantage, though the Red Sox remain competitive within the AL East. The settlement window extends to 4 June, allowing for postponement resolution should weather or scheduling disruptions occur; any cancellation without a make-up game triggers a 50–50 split.

Historical matchups between these franchises show marginal variance in win probability across similar seasonal contexts. The Braves' recent form—including their performance in the previous three seasons—suggests they maintain roughly a 55–58% win rate against AL East opponents when playing at home. The Red Sox's bullpen depth and offensive consistency have narrowed such gaps in comparable May fixtures, meaning the 63% probability sits within a reasonable range rather than reflecting extreme confidence. Comparable games from May 2023 and 2024 settled near 55–60% for the home team, suggesting current pricing may incorporate additional factors beyond historical baseline.

Traders should monitor roster announcements through 27 May, particularly injury status for key pitchers or position players on either side. Weather forecasts for Atlanta on game day—thunderstorms are common in late May—carry material weight given the outdoor venue. Recent news from MLB injury reports and any last-minute lineup changes announced within 24 hours of first pitch will influence late-market movement. The settlement depends on official MLB final statistics; ties remain extraordinarily rare in modern baseball, making the 50–50 tie clause a negligible contingency.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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

Where can I trade this market with the lowest fees?

On Polymarket Legal UK, 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?

Polymarket Legal UK 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 does it cost to trade on Polymarket Legal UK?

Zero. Polymarket Legal UK 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.

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.