Inside Edge
Seattle Mariners Games go Over 46.94% of the Time in 2026
MLBAmerican • AL West
The Seattle Mariners are 23-26-2 over/under record in 2026, a 46.94% rate with -9.76% ROI on flat $100 bets at closing odds. Closing lines from DraftKings, FanDuel, and BetMGM, graded against official MLB box scores.
Over Rate
23-26-2
Win %
46.94%
ROI
-9.76%
Games
49
Mariners Monthly Performance
-9.6%23-26 · -4.7u
-3.7%
-7.7%
-14.6%
Mar
3-3
3-3
Apr
12-13-1
12-13-1
May
8-10-1
8-10-1
Home / Away O/U
Home
15-13-1
53.57%+3.15%
Away
8-13-1
38.1%-26.96%
Recent Games (2026)
| Date | Opponent | Score | O/U |
|---|---|---|---|
| 2026-05-20 |  vs White Sox | W 5-4 | O |
| 2026-05-19 | vs White Sox | L 1-2 | U |
| 2026-05-18 | vs White Sox | W 6-1 | P |
| 2026-05-17 |  vs Padres | L 3-8 | O |
| 2026-05-16 | vs Padres | L 4-7 | O |
| 2026-05-15 | vs Padres | L 0-2 | U |
| 2026-05-14 |  @ Astros | W 3-8 | O |
| 2026-05-13 | @ Astros | L 4-3 | U |
| 2026-05-12 | @ Astros | W 2-10 | O |
| 2026-05-11 | @ Astros | W 1-3 | U |
Frequently Asked Questions
What is the Seattle Mariners over/under record in 2026?
The Seattle Mariners are 23-26-2 (46.94%) over/under record in 2026 on DraftKings, with -9.76% ROI.
What is the Seattle Mariners home vs away over/under record?
Home: 15-13-1 (+3.15% ROI). Away: 8-13-1 (-26.96% ROI).
More Mariners Stats (2026)
Compare Over/Under Record
Over/Under Record 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.