MLB Scores · MLB Odds

Mariners vs Red Sox

Final/10 · Mon Aug 31 · 6:45 PM ET · Fenway Park

Seattle MarinersMariners64-74
8
Final/10Aug 31, 2026
Boston Red SoxRed Sox75-63
9
TVNESNStreamMLB.TVMariners.TV

Closing line

US sportsbook at first pitch
Moneyline
SEA+138
BOS−148
Run line
SEA +1.5−164
BOS −1.5+136
Total O/U
Over 7.5−110
Under 7.5−109
  • Run line: Mariners +1.5 covered.
  • Total O/U: over 7.5 (17 runs).

Recap

The Boston Red Sox beat the Seattle Mariners 9-8 in 10 innings at Fenway Park in Boston on Aug 31, 2026 to move to 75-63.

The Red Sox came back from 3 runs down, trailing 8-5 in the Top 7. The lead changed hands 3 times. The Mariners scored 4 runs in the sixth inning.

Score by inning

Seattle Mariners and Boston Red Sox, score by inning
Team12345678910R
SEA10101410008
BOS12002002119

W: Chapman (3-4) · L: Criswell (2-2)

Scoring plays

Top 1

  1. SEADoubleRodríguez doubled to left, Arozarena scored.1-0

Bottom 1

  1. BOSHome runGasper homered to right center (387 feet).1-1

Bottom 2

  1. BOSHome runDuran homered to right (409 feet), Sogard scored.1-3

Top 3

  1. SEAHome runArozarena homered to left (402 feet).2-3

Top 5

  1. SEASingleArozarena singled to left, Young scored, Crawford to second, We. Wilson to third.3-3

Bottom 5

  1. BOSSingleRafaela singled to center, Wong scored and Anthony scored.3-5

Top 6

  1. SEASingleArozarena singled to right, We. Wilson scored and Young scored, Crawford to third.5-5
  2. SEADoubleCanzone doubled to left, Arozarena scored and Crawford scored.7-5

Top 7

  1. SEAHome runRaleigh homered to left (355 feet).8-5

Bottom 8

  1. BOSDoubleStory doubled to left, Durbin scored and Sogard scored.8-7

Bottom 9

  1. BOSSacrifice flyRafaela hit sacrifice fly to left, Anthony scored.8-8

Bottom 10

  1. BOSSingleStory singled to center, White scored, Duran to second, Durbin to third.8-9

Team stats

SEABOS
Hits
11
12
Home Runs
2
2
Runs Batted In
8
9
Walks
3
5
Strikeouts
11
6
Runners Left On Base
22
15
Errors
0
0

Player stats

Mariners · Batting

PlayerH-ABABRHRBIHRBBK#PAVGOBPSLG
Randy Arozarena LF4-5534410013.274.371.465
Dominic Canzone DH2-5502200115.255.328.482
Brock Rodden DH0-000000000.150.239.250
Julio Rodriguez CF1-5501100221.244.305.401
Cal Raleigh C1-5511110116.171.287.359
Josh Naylor 1B0-4400001117.267.328.363
Taylor Ward RF1-4401000116.229.363.319
Victor Robles RF0-000000003.262.322.315
Cole Young 2B0-4420000124.244.306.384
Weston Wilson 3B1-4411001322.198.292.331
J.P. Crawford SS1-2211001116.209.327.335

Mariners · Pitching

PlayerIPHRERBBKHRPC-STERAPC
George Kirby P5.075522286-564.1986
Seranthony Dominguez P1.00000008-74.448
Gabe Speier P1.100011015-92.5815
Eduard Bazardo P0.132200013-93.2513
Andres Munoz P1.111103015-114.3515
Cooper Criswell P0.11102007-43.487

Red Sox · Batting

PlayerH-ABABRHRBIHRBBK#PAVGOBPSLG
Roman Anthony DH2-4422001017.248.367.368
Mickey Gasper 1B1-4411111124.277.375.482
Ceddanne Rafaela CF2-4402300116.284.319.446
Wilyer Abreu RF0-5500000214.254.334.464
Eli White PR0-001000000.232.282.372
Nick Sogard 2B2-4422000020.271.370.413
Caleb Durbin 3B1-2211002012.253.327.390
Jarren Duran LF1-4411211010.207.264.369
Trevor Story SS2-5502300120.220.255.324
Connor Wong C1-4411000111.246.324.369

Red Sox · Pitching

PlayerIPHRERBBKHRPC-STERAPC
Payton Tolle P5.264426196-643.2396
Tyron Guerrero P0.133310013-73.2613
Erik Miller P1.011102116-92.2516
Alec Gamboa P2.010001023-141.1323
Aroldis Chapman P1.000002015-111.7715

Scores, stats and closing line: ESPN. Prediction-market prices: Kalshi and Polymarket. Betting splits: a consensus across several sportsbooks. Odds change constantly: confirm the price at the book. 21+. Gambling problem? Call 1-800-GAMBLER.

Game details updated Oct 13, 5:00 PM ET. How game pages are made