The Seattle Mariners went 90-72 in 2025, a .556 winning percentage — 8th of 30 record in baseball. They scored 766 runs and allowed 694, a run differential of +72. The offence ranked 9th of 30 in MLB for runs scored, while their 3.92 staff ERA was 12th of 30. Their 111 team wRC+ was 11% above league average — the second best in MLB. Cal Raleigh led the position players at 7.9 WAR, and Bryan Woo the rotation at a 2.94 ERA.
The 2025 season
Month by month, the streaks, and the record in the games that are argued about.
They finished first in the AL West, 3 games clear. They spent 58 of 186 days in first place, led by as many as 5 games on September 24 and were as far as 7 games back on July 1. Their best month was Sept/Oct at 17-8, their worst May at 13-14. The longest runs were a 10-game winning streak from September 6 to September 16 and a 5-game losing streak from June 3 to June 7. They were 51-30 at home and 39-42 on the road, 31-22 in one-run games and 47-43 against clubs that finished .500 or better. The most lopsided win was 18-2 at the Braves on September 7; the heaviest defeat, 9-0 against the Nationals on May 28.
Record by month. March games count toward April, October’s toward September.
Month
W
L
Pct
RS
RA
Diff
March/April
18
12
.600
152
129
+23
May
13
14
.481
109
125
-16
June
13
14
.481
125
115
+10
July
14
12
.538
112
107
+5
August
15
12
.556
129
126
+3
Sept/Oct
17
8
.680
139
92
+47
Splits. Extra innings are blank for a season whose games predate the innings count.
Games
W-L
Pct
Home
51-30
.630
Road
39-42
.481
One-run games
31-22
.585
Extra innings
10-11
.476
Within the division
34-18
.654
Against .500+ clubs
47-43
.522
Decided by 5+ runs
26-21
.553
Last 10
7-3
.700
American League West standings, 2025
Final standings. The division page has the rest of its season.
American League West, 2025. Games back of the best record in the division.
The players whose season belongs to this club, by position and then by dbWAR. A player traded mid-season is listed with the club he played most of his games for, so a deadline arrival may appear on his other club’s page instead.
Each rectangle is a player, sized by his share of the team's hits; darker means a larger share. Top 30 contributors. Select a different statistic above, or click a player for his page.
Day and night divide the home schedule, and so do weekend and weekday. The road line is a different question.
Split
Games
Avg
Med
Low
High
All home
81
31,334
31,700
15,306
45,701
Night
56
30,527
30,763
15,306
45,701
Day
25
33,142
35,174
15,560
45,658
Weekend
39
35,716
36,143
25,061
45,701
Weekday
42
27,265
27,142
15,306
42,883
On the road
81
28,480
31,416
2,518
44,471
Through the season
Average home crowd by month.
Month
Games
Average
Mar
5
29,240
Apr
13
23,739
May
11
29,530
Jun
11
29,604
Jul
13
32,646
Aug
15
36,259
Sep
13
35,730
By season
Announced gate — tickets distributed, which is the figure every reference publishes and is not the same as people through the turnstile. A game the feed reports no gate for is left out rather than counted as empty. Seasons before attendance was carried into the lake are absent from the trend rather than shown as zero.
Game time
First pitch to final out across 162 completed games, 2025.
Regulation
2:38
141 games
All games
2:44
Extra innings
3:27
21 of them
Longest
4:00
2025-09-11, 12 inn
Shortest
2:03
2025-03-30
By situation
Regulation and extra innings divide the season, and so do home and road. Day and night overlap both.
Split
Games
Avg
Med
Fastest
Longest
All
162
2:44
2:41
2:03
4:03
Regulation
141
2:38
2:37
2:03
3:19
Extra innings
21
3:27
3:29
2:45
4:03
Home
81
2:41
2:37
2:03
4:00
Road
81
2:48
2:47
2:12
4:03
Day
54
2:46
2:43
2:03
4:03
Night
108
2:43
2:39
2:03
4:00
Through the season
Average completed game by month.
Month
Games
Average
Mar
5
2:34
Apr
13
2:39
May
11
2:52
Jun
11
2:28
Jul
13
2:38
Aug
15
2:44
Sep
13
2:46
By season
Regulation games only, in minutes. 158 minutes this season.
Elapsed time from first pitch to final out. The feed does not itemise delays, so a rain delay is inside these numbers with no way to subtract it. Games called early are excluded — five innings in ninety-three minutes is not a short game — but they still count in attendance, because the crowd turned up.
Record versus run differential
Seattle Mariners are 90-72, a .556 win rate, while their +72 run differential implies .545. That is essentially in line — the record reflects the run scoring.
