Chicago White Sox vs Boston Red Sox Final Score and Odds Recap, August 4, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
Sox | +4.5 — | O 1.5 9% | 1% | 1% Kalshi |
Sox | -4.5 — | U 1.5 — | 1% | 1% Kalshi |
The market had Boston as a 55c home favorite (55c Kalshi, 54c Polymarket) over Chicago at 47c, and Boston won 14-2 at Fenway Park on August 4, 2026. The direction was right and the magnitude was not close. A price implying a 55% chance preceded a twelve-run rout that cleared every Boston spread rung offered through -8.5 and every total rung through Over 15.5. The board carried roughly $1.0M in cumulative volume and settled the moneyline at 100c Boston, 0c Chicago.
A 55c favorite is a coin flip with a lean. Boston was priced as modest home chalk against a Chicago team sitting 59-53, then hit a grand slam in the first inning on the way to a 14-2 win in front of 37,669 at Fenway Park. The moneyline paid out exactly as priced. Nothing else on the board did, because a market giving a team a 55% chance of winning is not a market expecting a twelve-run margin.
How the White Sox vs Red Sox Game Was Decided
Boston ended the competitive portion of the game in the first inning. Caleb Durbin hit a grand slam to left field, Boston put up six runs before Chicago recorded a third out, and the home side added six more in the sixth. Wilyer Abreu launched two solo homers, giving Boston four home runs for the second straight game. Boston finished with 15 hits, 14 runs and zero errors; Chicago finished with six hits, two runs and one error.
Patrick Sandoval took the win with five-plus innings, five strikeouts, two runs and six hits allowed on four walks. It was his first major league win since May 7, 2024, when he pitched for the Angels before missing half that season and all of 2025 recovering from Tommy John surgery. Brayan Bello closed the final three innings for his first career save. Chicago starter Davis Martin absorbed the damage, allowing nine runs on 10 hits in under six innings and falling to 9-6 with a 4.13 ERA. Chicago's two runs came in the fifth on a sacrifice fly and in the sixth, long after the result was settled.
The win moved Boston to 61-51 and extended a six-game winning streak; Boston has now won 24 of its last 27. Chicago fell to 59-53 and to 25-32 on the road. Both clubs are above the pace of a rebuilding season, which is precisely why this board priced as tightly as it did.
What the White Sox vs Red Sox Market Priced Before First Pitch
Before first pitch the moneyline had Boston at 55c on Kalshi and 54c on Polymarket, an average of 55c, with Chicago at 47c. The 1c cross-platform gap is agreement, not a value spot: two independent books arrived at the same read within a penny. That read was a 55% win probability for the home team, which is close to the weakest favorite price a home side gets in an MLB game.
The restraint was defensible on the inputs available. Boston is 26-29 at Fenway Park including this win, against 35-22 on the road, so the home venue has been the weaker half of the season for a team that is 10 games over .500 overall. Chicago at 59-53 is not a bottom-feeder, and the White Sox hub shows a club that had been trading close to even money in most of its recent boards. The market also had a fresh deadline to digest: Boston acquired catcher Adley Rutschman and saw its World Series price shorten from +1700 to +1400, making it one of the deadline's biggest risers. That re-rating landed on the season-long futures board, not on a single Tuesday night in August.
The scorecard, then, is a directional hit and a confidence miss. The market said Boston was slightly more likely than not to win. Boston won by 12, hit four home runs, and scored 12 of its 14 runs in two innings. A 55c price is a statement that either outcome is plausible; the game itself was over after 20 minutes.
Where the White Sox vs Red Sox Spread and Total Landed
Every Boston run-line rung offered on the board settled Yes. That includes -1.5, -2.5, -3.5, -4.5, -5.5, -6.5, -7.5 and -8.5, all resting at 100c after a 12-run margin. Every Chicago rung settled worthless. The ladder simply did not extend far enough to make the cover interesting.
The total is the cleaner illustration. Sixteen combined runs cleared the main O/U 9.5 line and then cleared every rung above it, including Over 15.5, the highest total the board offered. Boston's team total went over 7.5 while Chicago's team total failed to clear 2.5. The first-inning run market settled Yes on Boston's six-run opening frame, and the first-five-innings Over rungs through 6.5 all settled Yes.
The player props tracked the box score. Caleb Durbin's home run over 0.5 and 5+ total bases both settled at 100c, as did Wilyer Abreu's home run over 0.5 and 4+ total bases. Randal Grichuk's 2+ total bases settled Yes on a double. Sandoval's strikeout ladder split cleanly at his exact line: Over 4.5 settled at 100c on five strikeouts, Over 5.5 settled at 1c.
How the White Sox vs Red Sox Market Resolved
The moneyline resolved to the game winner. Boston Red Sox contracts settled at 100c and Chicago White Sox contracts at 0c on both Kalshi and Polymarket, a verified cross-platform pair carrying roughly $1.0M in cumulative volume across the full board. Spread and total contracts settled on the official final score of 14-2, and player props settled on the official box score. Settlement happened on the scheduled date once the game went final.
Key White Sox vs Red Sox Factors
- Six-run first inning: Caleb Durbin's grand slam to left field decided a market that had priced the game as a near coin flip.
- Sandoval's return to the win column: five-plus innings, five strikeouts, two runs, his first major league win since May 7, 2024 after Tommy John surgery.
- Davis Martin's line: nine runs on 10 hits in under six innings dropped him to 9-6 with a 4.13 ERA.
- The home split that anchored the price: Boston is 26-29 at Fenway against 35-22 on the road, which kept the moneyline near even despite the streak.
- Deadline re-rating: the Adley Rutschman acquisition moved Boston's World Series price from +1700 to +1400, one of the largest deadline moves on the board.
- Ladder exhaustion: every Boston spread rung through -8.5 and every total rung through Over 15.5 settled Yes.
Related MLB and White Sox vs Red Sox Markets
The series continued at Fenway, and the follow-up boards are the direct test of whether the market re-prices Boston's home number after a six-game streak: see the August 5 White Sox vs Red Sox board and the August 6 finale. For the season-long context behind both clubs, the Boston Red Sox hub tracks the futures and game boards that moved on the deadline, and the MLB hub carries every active cross-platform game board in the league.
Resolution Criteria
The moneyline resolved to the team that won the game. Boston beat Chicago 14-2 at Fenway Park on Tuesday, August 4, 2026, so Boston Red Sox moneyline contracts settled at 100c and paid $1 per share while Chicago White Sox contracts settled at 0c. Run-line contracts settled on the final margin of 12 runs, which cleared every Boston rung offered through -8.5 and zeroed every Chicago rung. Total-runs contracts settled on the 16 combined runs, so every Over rung offered through 15.5 settled Yes and every Under settled No. Player props and the first-inning run market settled on the official box score, with the first-inning market resolving Yes on Boston's six-run opening frame. Both Kalshi and Polymarket settled the board after the game went final on its scheduled date; a suspension or postponement before an official game would have deferred settlement to the completion date under each platform's rules.
Key Factors
- Caleb Durbin grand slam in a six-run first inning, the swing that decided a 55c coin-flip market
- Patrick Sandoval five-plus innings and five strikeouts, his first major league win since May 7, 2024
- Davis Martin allowed nine runs on 10 hits in under six innings, falling to 9-6 with a 4.13 ERA
- Boston 26-29 at Fenway against 35-22 on the road, the split that kept the home price near even
- Adley Rutschman deadline acquisition shortened Boston's World Series price from +1700 to +1400
- Every Boston spread rung through -8.5 and every total rung through Over 15.5 settled Yes
Who won the White Sox vs Red Sox game on August 4, 2026?
Boston won 14-2 at Fenway Park. The Red Sox scored six runs in the first inning on Caleb Durbin's grand slam and six more in the sixth, and Wilyer Abreu added two solo homers.
What were the White Sox vs Red Sox odds before first pitch?
Boston was a 55c home favorite (55c on Kalshi, 54c on Polymarket) with Chicago at 47c, an implied win probability of about 55% for the Red Sox. The 1c cross-platform gap meant the two books agreed on the read.
Did the Red Sox cover the spread?
Yes, by a wide margin. Boston won by 12 runs, so every Boston run-line rung the board offered, from -1.5 through -8.5, settled at 100c and every Chicago rung settled worthless.
Did the White Sox vs Red Sox total go over or under?
Over, decisively. The 16 combined runs cleared the main O/U 9.5 line and also cleared Over 15.5, the highest total rung the board listed, which settled at 100c.
Where did the White Sox vs Red Sox market trade and how did it settle?
The game traded on both Kalshi and Polymarket as a verified cross-platform pair with roughly $1.0M in cumulative volume. The moneyline settled at 100c for the Red Sox and 0c for the White Sox once the game went final on August 4, 2026.
What should traders watch after this result?
Whether the market lifts Boston's home price after a sixth straight win and 24 wins in 27 games. Boston is still only 26-29 at Fenway, so the next two boards in the series are the test of how fast the number moves.