The Seattle Mariners are 33-50-0 ATS as Favorites in 2026
MLBAmerican • AL West
The Seattle Mariners are 33-50-0 as favorite in 2026, a 39.76% rate with -7.86% ROI on flat $100 bets at closing odds. Closing lines from DraftKings, FanDuel, and BetMGM, graded against official MLB box scores.
Favorite ATS
33-50-0
Win %
39.76%
ROI
-7.86%
Games
83
Favorite ML
45-38-0
Win %
54.22%
ROI
-8.28%
Games
83
Mariners Monthly Performance
-11.7%35-55 · -10.5u
+3.8%
-20.6%
-8.9%
-10%
-6%
Mar
3-3
3-3
Apr
9-17
9-17
May
11-17
11-17
Jun
10-16
10-16
Jul
2-2
2-2
Home / Away as Favorite ATS
Home
17-22-0
43.59%+3.95%
Away
16-28-0
36.36%-18.33%
Recent Games (2026)
| Date | Opponent | Score | ATS | ML | O/U |
|---|---|---|---|---|---|
| 2026-07-05 |  vs Blue Jays | W 4-0 | ✓ | W | U |
| 2026-07-04 | vs Blue Jays | W 11-0 | ✓ | W | O |
| 2026-07-03 | vs Blue Jays | L 0-2 | ✗ | L | U |
| 2026-07-02 |  vs Angels | W 1-0 | ✗ | W | U |
| 2026-06-30 | vs Angels | W 8-3 | ✓ | W | O |
| 2026-06-29 | vs Angels | W 6-2 | ✓ | W | O |
| 2026-06-28 |  @ Guardians | L 6-5 | ✗ | L | O |
| 2026-06-27 | @ Guardians | L 4-3 | ✗ | L | U |
| 2026-06-26 | @ Guardians | W 1-3 | ✓ | W | U |
| 2026-06-25 |  @ Pirates | L 5-1 | ✗ | L | U |
Frequently Asked Questions
What is the Seattle Mariners as favorite in 2026?
The Seattle Mariners are 33-50-0 (39.76%) as favorite in 2026 on DraftKings, with -7.86% ROI.
What is the Seattle Mariners home vs away as favorite?
Home: 17-22-0 (+3.95% ROI). Away: 16-28-0 (-18.33% ROI).
More Mariners Stats (2026)
Compare As Favorite
Record as Favorite for the Seattle Mariners in the 2026 season on LineTerminal. Data sourced from DraftKings closing lines. Updated daily after games are graded. Past performance does not guarantee future results. LineTerminal offers advanced system-building tools to research Seattle Mariners betting trends across 80+ filters and 5+ years of data.
Inside Edge