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MLB · Final

Mariners Secure Victory Over Red Sox at Home

Sunday, June 21, 2026, 4:10 PM ET · T-Mobile Park

Seattle Mariners 3, Boston Red Sox 1, 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 Boston Red Sox vs Seattle Mariners?

Seattle Mariners beat Boston Red Sox 3-1 at T-Mobile Park on June 21, 2026.

Who was favored in Boston Red Sox vs Seattle Mariners?

Seattle Mariners were the favorite at DraftKings, moneyline -136 (about 58% implied). The favorite won.

In a decisive matchup at T-Mobile Park, the Seattle Mariners triumphed over the Boston Red Sox with a final score of 3-1. This victory not only showcased the Mariners' ability to rebound from recent struggles but also marked a significant moment in their season as they faced a team that had previously won the series 2-1 against them.

The Mariners entered this game with a home record of 40-39, while the Red Sox were struggling with a 31-44 record on the road. Recent form indicated challenges for both teams, with Seattle having a record of 4-6 over their last ten games and currently on a two-game losing streak. Their average runs scored in that span was 4.1, but they allowed an average of 5.4 runs per game. In contrast, the Red Sox had a record of 3-7 in their last ten outings, but they were coming off a win against the Mariners just the day before. Their average runs scored was slightly lower at 3.9, with an equal average of runs allowed.

At home, the Mariners had a record of 1-2 in their last three games, while the Red Sox struggled with a 1-3 record in their recent away games. This game was particularly notable as it was a chance for the Mariners to assert their dominance at home after a series of disappointing performances.

In terms of head-to-head matchups, the Mariners and Red Sox have faced each other six times recently, with the record standing at 3-3. The last meeting before this game resulted in a loss for the Mariners, which added pressure for them to perform well. The Mariners had previously won a game against the Red Sox in 2025 with a commanding score of 8-0, but they also faced defeats, including a 0-2 loss in another 2025 matchup.

Injuries played a role in both teams' lineups. The Mariners were without Brendan Donovan (7-Day IL, concussion), Cole Wilcox (15-Day IL, oblique), Matt Brash (60-Day IL, lat), Will Wilson (60-Day IL, thumb), and Emerson Hancock (15-Day IL, groin). On the other hand, the Red Sox had Ceddanne Rafaela and Adley Rutschman listed as day-to-day due to quadriceps and elbow issues, respectively, while Johan Oviedo, Kutter Crawford, and Zack Kelly were on the 60-Day IL with elbow and forearm injuries.

The betting market, as provided by DraftKings, had the Mariners favored at -136, with a spread of -1.5 and a total set at 6.5. The over odds were -114, while the under odds were -106. The moneyline for the Mariners was -136, and for the Red Sox, it was +113.

The game conditions were typical for a summer evening in Seattle, with fans expecting a competitive atmosphere. The Mariners took the lead early in the second inning when Canzone homered to left field, marking the first run of the game. The Red Sox responded in the third inning with a homer from Eaton, tying the game at 1-1. However, the Mariners regained the lead in the fifth inning when Young's single allowed We. Wilson to score. In the sixth inning, Canzone grounded out, bringing in another run for the Mariners, solidifying their 3-1 lead.

Overall, the Mariners demonstrated resilience and the ability to capitalize on their home advantage, while the Red Sox continued to struggle on the road. This game highlighted the Mariners' potential to turn their season around and provided a glimpse of their offensive capabilities, particularly with key players stepping up in crucial moments.

Odds

BookSpreadTotalMoneyline
DraftKingsSEA -136 6.5 o -114 / u -106 Boston Red Sox +113 · Seattle Mariners -136

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

Injury report

  • Brendan Donovan7-Day ILConcussionSeattle Mariners
  • Cole Wilcox15-Day-ILObliqueSeattle Mariners
  • Matt Brash60-Day-ILLatSeattle Mariners
  • Will Wilson60-Day-ILThumbSeattle Mariners
  • Emerson Hancock15-Day-ILGroinSeattle Mariners
  • Ceddanne RafaelaDay-To-DayQuadricepsBoston Red Sox
  • Adley RutschmanDay-To-DayElbowBoston Red Sox
  • Johan Oviedo60-Day-ILElbowBoston Red Sox
  • Kutter Crawford60-Day-ILForearmBoston Red Sox
  • Zack Kelly60-Day-ILElbowBoston Red Sox

Recent form

Seattle Mariners

Last 10: 4-6Streak L24.1 scored · 5.4 allowed per game1-2 at home

  • L2-6vs Boston Red SoxJun 20
  • L3-5vs Baltimore OriolesJun 18
  • W3-1vs Baltimore OriolesJun 17
  • L1-10at Washington NationalsJun 14
  • L3-8at Washington NationalsJun 13
  • W10-2at Washington NationalsJun 12
  • L5-7at Baltimore OriolesJun 11
  • L2-7at Baltimore OriolesJun 10
  • W6-5at Baltimore OriolesJun 9
  • W6-3at Baltimore OriolesJun 8

Boston Red Sox

Last 10: 3-7Streak W13.9 scored · 3.9 allowed per game1-3 away

  • W6-2at Seattle MarinersJun 20
  • L3-4vs Toronto Blue JaysJun 18
  • L0-3vs Toronto Blue JaysJun 17
  • L1-6vs Toronto Blue JaysJun 16
  • L4-6vs Texas RangersJun 14
  • W6-3vs Texas RangersJun 13
  • W10-1vs Texas RangersJun 12
  • L5-7at Tampa Bay RaysJun 10
  • L3-4at Tampa Bay RaysJun 9
  • L1-3at Tampa Bay RaysJun 8

Standings

TeamGames behindLostStreakWin %Won
Tampa Bay-56L1.59783
New York3.560W2.57180
Boston8.565L2.53675
Toronto14.571W1.49369
Baltimore14.571L2.49369
Houston-69W1.50771
Texas271L1.49369
Seattle574W2.47166
Athletics1786W1.38654
Los Angeles1887L2.37953

How the scoring went

  1. 2nd Inning0-1Canzone homered to left (348 feet).
  2. 3rd Inning1-1Eaton homered to left (409 feet).
  3. 5th Inning1-2Young singled to left, We. Wilson scored.
  4. 6th Inning1-3Canzone grounded out to shortstop, Rodríguez scored, Refsnyder to second.

Win probability

Above the line favours Seattle Mariners, below favours Boston Red Sox.

Venue

  • T-Mobile ParkSeattle, Washington
  • Attendance45577
  • OfficialsAdrian Johnson, Quinn Wolcott, Steven Jaschinski, Paul Clemons

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