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Chicago White Sox vs. Boston Red Sox

"Chicago White Sox vs. Boston Red Sox" — live sports odds and platform comparison.

1st 5 Innings O/U 2.5 74% 1st 5 Innings O/U 3.5 60% O/U 7.5 56% O/U 8.5 49% Volume: $93K Liquidity: $989K Closes: 12 Aug 2026
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Chicago White Sox vs. Boston Red Sox

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via March Madness Predictions) Pick
polygram.ink (preferred broker)
74% 26% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle See live odds →
Polymarket (direct)
polymarket.com
74% 26% 0% Geo-blocked in US/UK/EU USDC, on-chain See live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD See live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR See live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) See live odds →

Outcome probabilities

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

OutcomeProbability
1st 5 Innings O/U 2.574%
1st 5 Innings O/U 3.560%
O/U 7.556%
O/U 8.549%
1st 5 Innings O/U 4.547%
Chicago White Sox vs. Boston Red Sox46%
NRFI46%
Spread -1.538%
O/U 9.538%
1st 5 Innings O/U 5.535%
Spread -1.534%
1st 5 Innings Spread -1.531%
Spread -2.528%
1st 5 Innings Spread -1.527%
1st 5 Innings O/U 6.525%
Spread -2.524%
Extra Innings8%

Market context

Chicago’s next meeting with Boston comes against a backdrop of mixed form rather than a clean edge, which helps explain why the crowd has the side only narrowly below even money at 46% YES. The White Sox have been winning enough to stay in the frame, with ESPN listing them at 47-42 and showing a 7-6 win and a split of recent games against Cleveland, while Boston has also picked up momentum at different points, including a run of wins over Los Angeles and earlier series wins over Chicago.[1][2][3]

The historical comparison most relevant here is the recent head-to-head pattern: Boston has already beaten Chicago repeatedly this summer, including 5-0 and 8-1 results, and AP recaps note the Red Sox have strung together long stretches of better run prevention and timely hitting.[5][7][9] At the same time, Chicago’s season profile is not that of a fading side; ESPN’s team line shows stronger overall record and away competitiveness than Boston, so a near-50 market price is consistent with two clubs that have both shown volatility rather than a one-sided mismatch.[1][15]

For traders, the main catalysts are the final line-ups and any late pitching or injury news, because the recent numbers suggest Boston’s pitching form has been better while Chicago’s offence has been uneven.[15][19] CBS’ recent coverage also describes Boston as playing with more cohesion under interim manager Chad Tracy, and the same report notes the Red Sox were closing within range of .500 after a strong stretch, which matters if that form has held into this series.[14][2]

Sources: 1 · 2 · 3 · 4 · 5

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 2.5 at 74% for "Chicago White Sox vs. Boston Red Sox".

1st 5 Innings O/U 2.5 74% Other 26%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $93K.

Methodology

Sports-specific comparison page for Chicago White Sox vs. Boston Red Sox. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?
Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
When do sports markets resolve?
Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
What are live sports odds on Polymarket?
Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
Which sports markets are available?
Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
What's the difference between match odds and outright odds?
Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
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