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Athletics vs. Boston Red Sox

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

1st 5 Innings O/U 2.5 79% 1st 5 Innings O/U 3.5 67% Spread -1.5 56% O/U 8.5 56% Volume: $78K Liquidity: $993K Closes: 15 Aug 2026
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Athletics vs. Boston Red Sox

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via World Cup 2026 Favorites) Pick
polygram.ink (preferred broker)
79% 21% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Trade this market →
Polymarket (direct)
polymarket.com
79% 21% 0% Geo-blocked in US/UK/EU USDC, on-chain Trade this market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Trade this market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Trade this market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Trade this market →

Outcome probabilities

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

OutcomeProbability
1st 5 Innings O/U 2.579%
1st 5 Innings O/U 3.567%
Spread -1.556%
O/U 8.556%
1st 5 Innings O/U 4.554%
NRFI48%
O/U 9.545%
1st 5 Innings Spread -1.544%
Spread -2.544%
1st 5 Innings O/U 5.542%
O/U 10.538%
1st 5 Innings O/U 6.532%
Athletics vs. Boston Red Sox30%
Spread -1.522%
1st 5 Innings Spread -1.521%
Spread -2.514%
Extra Innings7%

Market context

The Athletics and Boston Red Sox meet again after Boston’s 13-1 win on Friday, a result that extended the Red Sox’s winning run to nine and underlined the gap in recent form. Boston have also taken the season series 3-1 so far, while the Athletics have gone 1-9 across their last 10 games, making a 30% crowd price for an A’s win look more like a live underdog than a coin flip. [1][3][5][11]

Recent comparable meetings have generally favoured Boston, but the earlier games in the series were tighter than Friday’s blow-out: the Red Sox won 4-2 on 27 July, the Athletics won 4-3 on 28 July, and Boston then edged 5-4 on 30 July. That mix matters because it shows the market is not pricing a single outlier, but a broader form edge for Boston against a team that has been outscored heavily over the last 10 days. [9][11][16]

The main catalysts are starting pitching confirmation and any line-up changes after a high-scoring, short-rest sequence. Friday’s match featured Payton Tolle for Boston and Jack Perkins for the Athletics, and the scheduled starter quality has already been a clear separator in this series; if either club changes arms or rests regulars, the number should move quickly. Boston’s recent surge has been built on strong run prevention and a hot top half of the order, while the Athletics’ path to an upset is usually tied to scoring early and forcing a bullpen game. [1][4][5][19]

Sources: 1 · 2 · 3 · 4 · 5

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 2.5 at 79% for "Athletics vs. Boston Red Sox".

1st 5 Innings O/U 2.5 79% Other 21%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $78K.

Methodology

Football-specific comparison page for Athletics 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.

FAQ

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.
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.
Can I import form data and lineups?
This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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