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Chicago White Sox vs. Boston Red Sox

How the prediction market is pricing "Chicago White Sox vs. Boston Red Sox" right now — Polymarket mid plus comparison with Betfair and Manifold.

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: $1.0M Closes: 12 Aug 2026
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Chicago White Sox vs. Boston Red Sox

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Champions League Prediction) 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%
O/U 9.538%
Spread -1.537%
1st 5 Innings O/U 5.535%
Spread -1.534%
1st 5 Innings Spread -1.531%
1st 5 Innings Spread -1.528%
Spread -2.528%
1st 5 Innings O/U 6.525%
Spread -2.524%
Extra Innings9%

Market context

The Chicago White Sox visit the Boston Red Sox in an August meeting that prices Boston slightly below an even chance at 46% YES, which fits a matchup where neither side has been dominant overall but recent form leans one way. Boston has taken the more convincing results in the direct series this summer, winning 8-1 and 5-0 in Chicago and then opening this set with a 14-2 blowout, so the market is not asking for a full home-favoured discount. Chicago’s season line has been steadier than Boston’s, but its recent offensive output has been uneven, and that has mattered more than raw record in a game like this.[2][3][4]

The comparable cases point to a market that is reacting more to pitching quality and sequence than to the standings. Boston’s recent run included four straight wins and nine victories in 11, with the club scoring freely enough to cover a short-moneyline profile, while Chicago has been closer to break-even over recent stretches and has struggled to sustain pressure when its bats cool.[2][3][12] ESPN’s game data also shows Boston with the better pitching indicators by ERA and WHIP, while Chicago has the edge in power and slightly better overall record, which helps explain why this is not priced as a one-sided spot despite the Red Sox’s recent head-to-head edge.[1]

The main catalysts are the starting pitchers and any late lineup changes around run production, particularly because CBS lists Sonny Gray for Boston and Sean Burke for Chicago in the latest preview, a pairing that gives the Red Sox the more established arm on paper.[4] Traders will also want the confirmed line-ups, because Chicago’s recent scoring has depended on a few bats rather than depth, and Boston’s margin has been driven by whether it can keep getting length from the rotation and early runs from the middle order.[1][12] If either club rests a key regular or scratches a starter after the announced matchup, that would be the clearest line-moving development.

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

Football-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 (US-focused) or Manifold (play-money).

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.

UK Frequently Asked Questions

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.
Can I bet on individual matches?
Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
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.
Can I trade Premier League prediction markets from the UK?
Yes. Polymarket has Premier League outcome markets (title winner, relegation, top scorer). For UK traders wanting GBP settlement and UKGC protection, Betfair Exchange and Smarkets offer Premier League futures and match markets. Betfair is the deepest liquidity venue for UK football exchange markets.
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