Information, not picks. Every figure below is a factual record drawn from completed games and the market's run line/total — win-loss counts, cover counts and Over/Under counts, nothing more. We publish no pick, lean, or projection on this page. "Against the run line" counts games by the market's closing line, or the opening line where no closing price was recorded. Records cover the seasons present in our data (2020–2026 for line-based records) and are current as of Aug 9, 2026.
Next game & market line
The market's number — not our projection · as of Aug 9, 2026
Straight-up, against-the-run line and total records · as of Aug 9, 2026
2026 record
56-62
.475 win%
2026 ATS
47-70
117 lined
2026 Over/Under
61-53-4
118 w/ total
Home / Away (SU)
33-28 / 23-34
2026 scoring
3.9
4.0 allowed
per game
Current streak
L3
Mariners ATS record & Over/Under record
ATS means against the run line. Games with a recorded closing (or opening) line, 2020–2026 · cover/over counts only, no advice · as of Aug 9, 2026
ATS record
446-465-2
913 lined games
Over / Under
472-427-15
Home ATS
224-230-1
455 games
Away ATS
222-235-1
458 games
As favorite (ATS)
278-318-1
348-249 SU
597 games
As underdog (ATS)
168-147-1
127-189 SU
316 games
Last 10 ATS
2-8
Last 10 O/U
4-6
Season-by-season
Straight-up · ATS · O/U · points for/against · as of Aug 9, 2026
Season
Record
ATS
O/U
RS/g
RA/g
2026
56-62
47-70
61-53-4
3.9
4.0
2025
90-72
71-91
88-71-3
4.7
4.3
2024
85-77
68-81
68-79-2
4.2
3.7
2023
88-74
72-77
81-67-1
4.7
4.1
2022
90-72
80-63
67-74-2
4.3
3.8
2021
90-72
83-60
78-62-3
4.3
4.6
Recent market trends
Factual run line/total & win splits over the 2024–2026 seasons · every trend shows its sample size (n); minimum 30 games · historical record, not predictive · as of Aug 9, 2026
Covers the run line — overall
43%
n=428 · 2024–2026
Covers the run line — as a favorite
43%
n=330 · 2024–2026
Covers the run line — as an underdog
44%
n=98 · 2024–2026
Covers the run line — at home
45%
n=216 · 2024–2026
Covers the run line — on the road
42%
n=212 · 2024–2026
Wins straight up — as a favorite
56%
n=330 · 2024–2026
Wins straight up — as an underdog
39%
n=98 · 2024–2026
Games go Over the total
51%
n=429 · 2024–2026
Recent form
Trailing-form facts — recent games vs the season baseline · information, not a prediction · as of Aug 9, 2026
Last 10 games: 3-7 straight up.
Scoring last 10: 2.5 runs/game vs 3.9 on the season (trending down).
Allowed last 10: 5.0 runs/game vs 4.0 on the season (looser).
Recent roster moves
Official transactions incl. injured-list activity, last 14 days · source: MLB Stats API · as of Aug 9, 2026
Aug 8Seattle Mariners sent RHP Carlos Vargas on a rehab assignment to Everett AquaSox.
Aug 8Seattle Mariners sent RHP Carlos Vargas on a rehab assignment to Everett AquaSox.
Aug 7Seattle Mariners placed RHP Cole Wilcox on the 15-day injured list. Left oblique strain. IL
Aug 7Seattle Mariners sent CF Stuart Fairchild outright to Tacoma Rainiers.
Aug 7Seattle Mariners recalled RHP Nick Davila from Tacoma Rainiers.
Aug 4Seattle Mariners activated 3B Brendan Donovan from the 10-day injured list. IL
Aug 4Seattle Mariners activated LF Taylor Ward.
Aug 4Seattle Mariners activated RHP Seranthony Domínguez.
Franchise odds-history notes
Factual splits from our data · 2015–2026 · as of Aug 9, 2026
Its games have gone 472-427 to the Over (2020–2026); average posted total 8.0.
In one-score finishes (1 run): 317-265 straight up over 582 games (2015–2026).
Averaged 4.4 scored and 4.4 allowed across 1798 games in the data (2015–2026).
Roster notables — 2026 season leaders
Team leaders from completed 2026 games · as of Aug 9, 2026 · reflects 2026 rosters — offseason trades and signings are not shown