Inside Edge
The Seattle Mariners are 17-30-0 ATS as Favorites in 2026
MLBAmerican • AL West
The Seattle Mariners are 17-30-0 as favorite in 2026, a 36.17% rate with -17.52% ROI on flat $100 bets at closing odds. Closing lines from DraftKings, FanDuel, and BetMGM, graded against official MLB box scores.
Favorite ATS
17-30-0
Win %
36.17%
ROI
-17.52%
Games
47
Favorite ML
23-24-0
Win %
48.94%
ROI
-18.53%
Games
47
Mariners Monthly Performance
-21.2%18-33 · -10.8u
+3.8%
-20.6%
-29.2%
Mar
3-3
3-3
Apr
9-17
9-17
May
6-13
6-13
Home / Away as Favorite ATS
Home
9-16-0
36%-13.64%
Away
8-14-0
36.36%-21.93%
Recent Games (2026)
| Date | Opponent | Score | ATS | ML | O/U |
|---|---|---|---|---|---|
| 2026-05-20 |  vs White Sox | W 5-4 | ✗ | W | O |
| 2026-05-19 | vs White Sox | L 1-2 | ✗ | L | U |
| 2026-05-18 | vs White Sox | W 6-1 | ✓ | W | P |
| 2026-05-17 |  vs Padres | L 3-8 | ✗ | L | O |
| 2026-05-16 | vs Padres | L 4-7 | ✗ | L | O |
| 2026-05-15 | vs Padres | L 0-2 | ✗ | L | U |
| 2026-05-14 |  @ Astros | W 3-8 | ✓ | W | O |
| 2026-05-13 | @ Astros | L 4-3 | ✗ | L | U |
| 2026-05-12 | @ Astros | W 2-10 | ✓ | W | O |
| 2026-05-11 | @ Astros | W 1-3 | ✓ | W | U |
Frequently Asked Questions
What is the Seattle Mariners as favorite in 2026?
The Seattle Mariners are 17-30-0 (36.17%) as favorite in 2026 on DraftKings, with -17.52% ROI.
What is the Seattle Mariners home vs away as favorite?
Home: 9-16-0 (-13.64% ROI). Away: 8-14-0 (-21.93% 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.