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Boston Red Sox Lead Seattle Mariners 20-13 in Head-to-Head Matchups

MLB19-10-0 ATS (65.52%)Data through 2025-06-18

Red Sox vs Mariners Betting Record

Against the Spread

19-10-0

Win %

65.52%

ROI

+23.69%

Units

+6.9

Moneyline

20-13-0

Win %

60.61%

ROI

+14.76%

Units

+4.9

Over Rate

20-9-0

Win %

68.97%

ROI

+31.96%

Units

+9.3

From the Other Side — Mariners vs Red Sox

Against the Spread

10-19-0

Win %

34.48%

ROI

-29.04%

Units

-8.4

Moneyline

13-20-0

Win %

39.39%

ROI

-21.09%

Units

-7.0

Over Rate

20-9-0

Win %

68.97%

ROI

+31.96%

Units

+9.3

Venue Splits

Red Sox Home

8-5-0 ATS

61.54% • +27.85%

11-6-0 ML (64.71%)

Mariners Home

5-11-0 ATS

31.25% • -31.43%

7-9-0 ML (43.75%)

Scoring Averages

Red Sox

5.2

PPG

4.5

allowed

Total

9.8

Avg

33

games

Mariners

4.5

PPG

5.2

allowed

Recent Matchups

Date	Matchup	Score	Spread	ATS	ML	O/U
06/182025-06-18	Red Sox @ Mariners	W 1-3	-1.5	✓	W	U
06/172025-06-17	Red Sox @ Mariners	L 8-0	-1.5	✗	L	O
06/162025-06-16	Red Sox @ Mariners	W 0-2	-1.5	✓	W	U
04/242025-04-24	Mariners @ Red Sox	L 3-4	-1.5	✗	L	U
04/232025-04-23	Mariners @ Red Sox	L 5-8	-1.5	✗	L	O
04/222025-04-22	Mariners @ Red Sox	W 8-3	-1.5	✓	W	O
07/312024-07-31	Mariners @ Red Sox	W 3-2	-1.5	✓	W	U
07/302024-07-30	Mariners @ Red Sox	L 6-10	-1.5	✗	L	O
07/292024-07-29	Mariners @ Red Sox	W 14-7	-1.5	✓	W	O
03/312024-03-31	Red Sox @ Mariners	W 1-5	-1.5	✓	W	U
03/302024-03-30	Red Sox @ Mariners	L 4-3	-1.5	✓	L	U
03/292024-03-29	Red Sox @ Mariners	L 1-0	-1.5	✓	L	U
03/282024-03-28	Red Sox @ Mariners	W 4-6	-1.5	✓	W	O
08/022023-08-02	Red Sox @ Mariners	L 6-3	-1.5	✗	L	O
08/012023-08-01	Red Sox @ Mariners	W 4-6	-1.5	✓	W	O
07/312023-07-31	Red Sox @ Mariners	L 6-2	-1.5	✗	L	O
05/172023-05-17	Mariners @ Red Sox	W 12-3	-1.5	✓	W	O
05/162023-05-16	Mariners @ Red Sox	W 9-4	-1.5	✓	W	O
05/152023-05-15	Mariners @ Red Sox	L 1-10	-1.5	✗	L	O
06/122022-06-12	Red Sox @ Mariners	W 0-2	-1.5	✓	W	U

Frequently Asked Questions

What is the Boston Red Sox vs Seattle Mariners all-time record?

The Boston Red Sox are 20-13 against the Seattle Mariners in head-to-head matchups.

What is the Boston Red Sox ATS record vs the Seattle Mariners?

The Boston Red Sox are 19-10-0 against the spread vs the Seattle Mariners on DraftKings, with +23.69% ROI.

Do Boston Red Sox vs Seattle Mariners games go over or under?

Boston Red Sox vs Seattle Mariners games average 9.8 total points. The Over has hit 68.97% of the time.

More Red Sox Matchups

See from Mariners perspective

Head-to-head betting record for Boston Red Sox vs Seattle Mariners on LineTerminal. The Red Sox are 20-13 straight up against the Mariners and 19-10-0 against the spread (65.52% cover rate, +23.69% ROI) on DraftKings. Data sourced from DraftKings closing lines. Updated daily after games are graded. Past performance does not guarantee future results.