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MLB · Final

Red Sox Secure Series Sweep Against Giants

Friday, August 21, 2026, 7:10 PM ET · Fenway Park

Boston Red Sox 6, San Francisco Giants 4, final. Our MLB picks are sealed as a hash before kickoff and settled in public, losses included.

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Quick answers

Who won San Francisco Giants vs Boston Red Sox?

Boston Red Sox beat San Francisco Giants 6-4 at Fenway Park on August 21, 2026.

Who was favored in San Francisco Giants vs Boston Red Sox?

Boston Red Sox were the favorite at DraftKings, moneyline -176 (about 64% implied). The favorite won.

The Boston Red Sox clinched a decisive victory over the San Francisco Giants with a final score of 6-4 at Fenway Park, completing a 3-0 series sweep. This win is significant for the Red Sox as they continue to push for a strong finish to the season, improving their record to 70-59. The Giants, on the other hand, remain at the bottom of the standings with a record of 52-77.

In this matchup, the Red Sox showcased their offensive power, particularly in the third inning, where they scored four runs. The inning began with Eldridge's single that brought Koss home, giving the Giants an early lead. However, the Red Sox quickly responded with a three-run homer from Contreras, followed by a walk that allowed Rutschman to score, and a hit by pitch that brought in another run, pushing the score to 4-1 in favor of Boston.

The Giants attempted to rally, with Gilbert hitting a home run in the fourth inning, narrowing the gap to 5-3. Devers added another homer for the Red Sox, but the Giants managed to score again with Abreu's triple in the sixth inning. Ultimately, the Red Sox held on to their lead, securing the win.

Recent form for both teams has been mixed. The Red Sox had a record of 4-6 in their last ten games prior to this victory, with an average of 5.2 runs scored and 4.1 runs allowed per game. Their home record in this stretch was 2-1, while they struggled on the road with a 2-5 record. The Giants, conversely, have been struggling significantly, with a 3-7 record over their last ten games and an average of just 3.0 runs scored against 4.8 runs allowed. Their away record has been particularly poor, standing at 1-3.

In terms of head-to-head matchups, this series marked the third meeting between the two teams this season, with the Red Sox having won all three games. Their previous encounters included a win for the Giants on June 22, 2025, and a victory for the Red Sox the day before.

Injury-wise, the Red Sox were missing several key players, including Ceddanne Rafaela, who is day-to-day with a quadriceps issue, and Johan Oviedo, Kutter Crawford, Zack Kelly, and Justin Slaten, all on the 60-day injured list. The Giants also faced challenges, with Marcelo Mayer, JT Brubaker, Victor Bericoto, Matt Gage, and Willy Adames all sidelined due to various injuries.

The betting market reflected the Red Sox's strong position going into the game, with DraftKings listing them as -176 favorites, while the Giants were at +163. The total for the game was set at 7.5, with odds of -124 for the under and +103 for the over.

The conditions at Fenway Park were conducive to a solid offensive display, and viewers were treated to a thrilling game filled with key plays and momentum shifts. As the season progresses, the Red Sox will look to build on this momentum, while the Giants will need to regroup and address their recent struggles.

Odds

BookSpreadTotalMoneyline
DraftKingsBOS -176 7.5 o +103 / u -124 San Francisco Giants +163 · Boston Red Sox -176

What these prices pay on $100 · What these numbers mean

Injury report

  • Ceddanne RafaelaDay-To-DayQuadricepsBoston Red Sox
  • Johan Oviedo60-Day-ILElbowBoston Red Sox
  • Kutter Crawford60-Day-ILForearmBoston Red Sox
  • Zack Kelly60-Day-ILElbowBoston Red Sox
  • Justin Slaten15-Day-ILElbowBoston Red Sox
  • Marcelo Mayer10-Day-ILForearmSan Francisco Giants
  • JT Brubaker15-Day-ILRibsSan Francisco Giants
  • Victor Bericoto10-Day-ILKneeSan Francisco Giants
  • Matt Gage60-Day-ILElbowSan Francisco Giants
  • Willy Adames10-Day-ILElbowSan Francisco Giants

Recent form

Boston Red Sox

Last 10: 4-6Streak L15.2 scored · 4.1 allowed per game2-1 at home

  • L6-7vs Arizona DiamondbacksAug 19
  • W9-4vs Arizona DiamondbacksAug 18
  • W11-1vs Arizona DiamondbacksAug 17
  • L3-8at Pittsburgh PiratesAug 16
  • W4-0at Pittsburgh PiratesAug 15
  • L4-8at Pittsburgh PiratesAug 14
  • W7-0at Toronto Blue JaysAug 13
  • L4-6at Toronto Blue JaysAug 12
  • L3-5at Toronto Blue JaysAug 11
  • L1-2at Toronto Blue JaysAug 10

San Francisco Giants

Last 10: 3-7Streak L13 scored · 4.8 allowed per game1-3 away

  • L2-5at Cleveland GuardiansAug 20
  • W1-0at Cleveland GuardiansAug 19
  • L1-8at Cleveland GuardiansAug 18
  • L7-13vs Colorado RockiesAug 16
  • L2-5vs Colorado RockiesAug 15
  • W4-1vs Houston AstrosAug 12
  • L3-6vs Houston AstrosAug 11
  • L1-3vs Detroit TigersAug 9
  • W5-2vs Detroit TigersAug 8
  • L4-5at Texas RangersAug 5

Standings

TeamGames behindLostStreakWin %Won
Los Angeles-57W1.59383
Arizona9.567W1.52574
San Diego1067L2.52173
San Francisco25.583L1.41158
Colorado2986W2.38654
Tampa Bay-57L2.59383
New York360W2.57180
Boston7.565W1.53976
Toronto13.571W2.49670
Baltimore14.572L3.48969

How the scoring went

  1. 3rd Inning1-0Eldridge singled to right, Koss scored, Devers to second.
  2. 3rd Inning1-3Contreras homered to left, Sogard scored and Abreu scored.
  3. 3rd Inning1-4Monasterio walked, Rutschman scored, Duran to second, Durbin to third.
  4. 3rd Inning1-5Gasper hit by pitch, Durbin scored, Monasterio to second, Duran to third.
  5. 4th Inning3-5Gilbert homered to right (389 feet), Koss scored.
  6. 4th Inning4-5Devers homered to center (412 feet).
  7. 6th Inning4-6Abreu tripled to right, Sogard scored.

Win probability

Above the line favours Boston Red Sox, below favours San Francisco Giants.

Venue

  • Fenway ParkBoston, Massachusetts
  • Attendance37007
  • OfficialsJohn Libka, James Hoye, James Jean, Sean Barber

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Fixture data from the league feeds. The report was written from the recorded facts for this game and nothing else.