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Boston Red Sox vs. Athletics

Five-platform snapshot of "Boston Red Sox vs. Athletics" — live Polymarket pricing, plus how Kalshi, Betfair and Manifold structure the same contract.

1st 5 Innings O/U 2.5 82% 1st 5 Innings O/U 3.5 69% Boston Red Sox vs. Athletics 63% O/U 8.5 62% Volume: $421K Liquidity: $1.8M Closes: 4 Aug 2026
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Boston Red Sox vs. Athletics

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Polymarket Alternative UK) Pick
polygram.ink (preferred broker)
82% 18% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle View on Polymarket →
Polymarket (direct)
polymarket.com
82% 18% 0% Geo-blocked in US/UK/EU USDC, on-chain View on Polymarket →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD View on Polymarket →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR View on Polymarket →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) View on Polymarket →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
1st 5 Innings O/U 2.582%
1st 5 Innings O/U 3.569%
Boston Red Sox vs. Athletics63%
O/U 8.562%
1st 5 Innings O/U 4.557%
NRFI54%
Spread -1.553%
O/U 9.552%
1st 5 Innings O/U 5.546%
O/U 10.544%
Spread -2.542%
1st 5 Innings Spread -1.538%
1st 5 Innings O/U 6.535%
Spread -1.524%
1st 5 Innings Spread -1.522%
Spread -2.516%
Extra Innings8%

Market context

The Boston Red Sox vs. Athletics prediction market currently prices this outcome at 82% YES. In the upcoming MLB game between the Boston Red Sox and Athletics, scheduled for July 27 at 9:40PM ET: This market will resolve to "Boston Red Sox" if the Boston Red Sox win the game. This market wi…

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 2.5 at 82% for "Boston Red Sox vs. Athletics".

1st 5 Innings O/U 2.5 82% Other 18%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $421K.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Alternative UK, 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?
Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
How does resolution work?
Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
What does Polymarket cost to trade?
Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
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.
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Trade Boston Red Sox vs. Athletics on Polymarket Alternative UK

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Related Topics

Sports