- Win rate
- 37.04%
- ROI
- -21.32%
- Graded games
- 162
MLB · American · AL West
Seattle Mariners ATS Record
Mariners Monthly performance
-29.7%Sep · 8-16
+3.8%
-20.6%
-8.9%
-13.3%
-33.5%
-30.3%
-29.7%
Mar
3-3
3-3
Apr
9-17
9-17
May
11-17
11-17
Jun
10-17
10-17
Jul
8-16
8-16
Aug
11-16
11-16
Sep
8-16
8-16
Home / Away ATS
Home
31-50-0
38.27%-18.23%
Away
29-52-0
35.8%-24.41%
Favorite / Underdog ATS
As Favorite
44-83-0
34.65%-19.26%
As Underdog
16-19-0
45.71%-28.79%
Recent Games (2026)
Frequently Asked Questions
What is the Seattle Mariners against-the-spread record in 2026?
The Seattle Mariners are 60-102-0 (37.04%) against-the-spread record in 2026 on DraftKings, with -21.32% ROI.
What is the Seattle Mariners home vs away against-the-spread record?
Home: 31-50-0 (-18.23% ROI). Away: 29-52-0 (-24.41% ROI).
More Mariners Stats (2026)
Compare ATS Record
Data and season archive
Records use DraftKings closing lines and each market’s graded sample. Win rates exclude pushes; ROI uses flat one-unit bets. Each split can have a different sample. Latest recorded game: 2026-09-27.