Seattle Mariners defeat Boston Red Sox 3-1: Recap & Betting Results
Sun, Jun 21, 2026 · MLB · Boston Red Sox 1, Seattle Mariners 3
The Seattle Mariners beat the Boston Red Sox 3-1 on Sunday, June 21, 2026, at T-Mobile Park. The Seattle Mariners covered the run line as 1.5-run favorites. The game went under the closing total of 6.5, with 4 runs combined. AiQ's player props in this game went 0-1.
Boston Red Sox vs. Seattle Mariners final score and game recap
The Seattle Mariners won by 2 runs.
The leading performers, from the box score:
- Payton Tolle (Boston Red Sox): 6.0 innings, 3 earned runs, 2 strikeouts.
- Nate Eaton (Boston Red Sox): 1-for-2, 1 home run, 1 RBI, 1 run.
- Logan Gilbert (Seattle Mariners): 6.1 innings, 1 earned run, 8 strikeouts.
- Dominic Canzone (Seattle Mariners): 1-for-3, 1 home run, 2 RBIs, 1 run.
Who covered the spread in Boston Red Sox vs. Seattle Mariners?
The Seattle Mariners covered the run line as 1.5-run favorites, winning by 2 runs.
The run line opened and closed at Seattle Mariners -1.5.
Did Boston Red Sox vs. Seattle Mariners go over or under the total?
The game went under: 4 runs combined against a closing total of 6.5, under by 2.5.
The total opened at 7 and closed at 6.5.
How did AiQ's Boston Red Sox vs. Seattle Mariners predictions do?
AiQ's player props in this game went 0-1.
- Player props: 0-1, -$100 on $100 a pick at the listed prices.
Boston Red Sox vs. Seattle Mariners player prop results
AiQ's player prop picks went 0-1 in this game, -$100 on $100 a pick at the listed prices.
- Logan Gilbert (Seattle Mariners): under 7.5 strikeouts at +115, finished with 8, a loss.
Boston Red Sox vs. Seattle Mariners odds: sportsbook value and line movement
Shortly before the start, the consensus moneyline had the Boston Red Sox at +109 and the Seattle Mariners at -131. With the bookmaker's margin removed, that made the Seattle Mariners a 54% favorite. The Seattle Mariners won as the favorite at -131: $76.34 profit on a $100 bet.
The total moved down from 7 to 6.5, and the game went under.
Boston Red Sox and Seattle Mariners betting trends: 2026 season
This result left the Boston Red Sox 31-44 in the 2026 regular season (12-25 at home, 19-19 away or at neutral sites). Against the run line, they covered in 30 of 73 games with a closing line on file. Their games went over the closing total 30 times and under 39 times, with 4 pushes.
This result left the Seattle Mariners 40-39 in the 2026 regular season (22-19 at home, 18-20 away or at neutral sites). Against the run line, they covered in 29 of 75 games with a closing line on file. Their games went over the closing total 36 times and under 36 times, with 3 pushes.
What's next for Boston Red Sox and Seattle Mariners?
Next for the Boston Red Sox: at the Colorado Rockies on Monday, June 22, 2026. Next for the Seattle Mariners: at the Pittsburgh Pirates on Tuesday, June 23, 2026.