Seattle Mariners

50 seasons · 1977–2026 · 3,753–4,096 (.478) · 0 pennants · 0 World Series

Season by season

50 seasons, newest first. The year links to that season across all of baseball.

Year	Lg	Div	W	L	W–L%	Finish	R	RA	Result
2026	AL	—	64	74	.464	—	—	—
2025	AL	W	90	72	.556	1st	766	694	Division
2024	AL	W	85	77	.525	2nd	676	607
2023	AL	W	88	74	.543	3rd	758	659
2022	AL	W	90	72	.556	2nd	690	623	Wild card
2021	AL	W	90	72	.556	2nd	697	748
2020	AL	W	27	33	.450	3rd	254	303
2019	AL	W	68	94	.420	5th	758	893
2018	AL	W	89	73	.549	3rd	677	711
2017	AL	W	78	84	.481	3rd	750	772
2016	AL	W	86	76	.531	2nd	768	707
2015	AL	W	76	86	.469	4th	656	726
2014	AL	W	87	75	.537	3rd	634	554
2013	AL	W	71	91	.438	4th	624	754
2012	AL	W	75	87	.463	4th	619	651
2011	AL	W	67	95	.414	4th	556	675
2010	AL	W	61	101	.377	4th	513	698
2009	AL	W	85	77	.525	3rd	640	692
2008	AL	W	61	101	.377	4th	671	811
2007	AL	W	88	74	.543	2nd	794	813
2006	AL	W	78	84	.481	4th	756	792
2005	AL	W	69	93	.426	4th	699	751
2004	AL	W	63	99	.389	4th	698	823
2003	AL	W	93	69	.574	2nd	795	637
2002	AL	W	93	69	.574	3rd	814	699
2001	AL	W	116	46	.716	1st	927	627	Division
2000	AL	W	91	71	.562	2nd	907	780	Wild card
1999	AL	W	79	83	.488	3rd	859	905
1998	AL	W	76	85	.472	3rd	859	855
1997	AL	W	90	72	.556	1st	925	833	Division
1996	AL	W	85	76	.528	2nd	993	895
1995	AL	W	79	66	.545	1st	796	708	Division
1994	AL	W	49	63	.438	3rd	569	616
1993	AL	W	82	80	.506	4th	734	731
1992	AL	W	64	98	.395	7th	679	799
1991	AL	W	83	79	.512	5th	702	674
1990	AL	W	77	85	.475	5th	640	680
1989	AL	W	73	89	.451	6th	694	728
1988	AL	W	68	93	.422	7th	664	744
1987	AL	W	78	84	.481	4th	760	801
1986	AL	W	67	95	.414	7th	718	835
1985	AL	W	74	88	.457	6th	719	818
1984	AL	W	74	88	.457	5th	682	774
1983	AL	W	60	102	.370	7th	558	740
1982	AL	W	76	86	.469	4th	651	712
1981	AL	W	44	65	.404	6th	426	521
1980	AL	W	59	103	.364	7th	610	793
1979	AL	W	67	95	.414	6th	711	820
1978	AL	W	56	104	.350	7th	614	834
1977	AL	W	64	98	.395	6th	624	855

A dash is a value the source has not published — the season still being played has no final run totals. An empty result column means the club did not win any of those things that year, except in 1994, when a strike ended the season before the postseason, and in a season still under way — then there was nothing to win.

Career leaders with this club

Top 20 by wins above replacement accumulated with the Seattle Mariners, and the same for pitchers. Seasons where a player was mostly somewhere else are not counted here.

Batting20 players

Player	Years	WAR	G	PA	H	HR	RBI	AVG
Edgar Martinez	1987–2004	82.2	2,055	8,672	2,247	309	1,261	.312
Ken Griffey	1989–2010	70.1	1,685	7,250	1,843	417	1,216	.292
Ichiro Suzuki	2001–2019	39.5	1,928	8,776	2,615	104	660	.321
Kyle Seager	2011–2021	37.7	1,480	6,204	1,395	242	807	.251
Alex Rodriguez	1994–2000	34.2	790	3,515	966	189	595	.309
Alvin Davis	1984–1991	27.9	1,166	4,892	1,163	160	667	.281
Jay Buhner	1988–2001	27.1	1,465	5,904	1,268	310	964	.254
Julio Rodriguez	2022–2026	23.4	717	3,148	776	132	398	.269
Nelson Cruz	2015–2018	22.9	606	2,558	640	163	414	.284
Robinson Cano	2014–2018	22.2	704	3,050	821	107	411	.296
Cal Raleigh	2021–2026	20.1	727	2,897	552	173	430	.218
Mike Cameron	2000–2003	18.4	610	2,528	554	87	344	.256
Ken Phelps	1983–1988	17.6	574	1,880	373	115	277	.248
J. P. Crawford	2019–2026	16.4	951	4,046	865	74	356	.247
Harold Reynolds	1983–1992	15.6	1,155	4,593	1,063	17	295	.260
Mitch Haniger	2017–2024	14.9	651	2,737	619	119	350	.254
Phil Bradley	1983–1987	14.5	607	2,476	649	52	234	.301
Raul Ibanez	1996–2013	14.0	1,110	4,270	1,077	156	612	.279
Adrian Beltre	2005–2009	13.5	715	3,059	751	103	396	.266
Ruppert Jones	1977–1979	13.4	451	1,919	434	51	200	.257

Pitching20 players

Player	Years	WAR	G	W	L	SV	IP	SO	ERA
Felix Hernandez	2005–2019	40.9	419	169	136	0	2729.7	2,524	3.42
Randy Johnson	1989–1998	36.4	292	140	79	2	1952.3	2,304	3.37
Jamie Moyer	1997–2006	19.6	321	144	87	0	2073.7	1,236	4.00
Erik Hanson	1988–1993	16.7	145	56	54	0	967.3	740	3.69
Logan Gilbert	2021–2026	15.4	173	58	44	0	995.7	1,050	3.55
Freddy Garcia	1999–2004	14.9	186	85	54	0	1199.3	921	3.94
Mike Moore	1982–1988	14.7	227	66	96	2	1457.0	937	4.38
George Kirby	2022–2026	13.8	138	54	44	0	790.3	749	3.70
James Paxton	2013–2021	11.3	103	41	26	0	583.7	619	3.42
Mark Langston	1984–1988	10.6	166	70	62	0	1124.3	1,018	4.03
Jim Beattie	1980–1986	9.5	163	43	72	1	944.7	563	4.14
Floyd Bannister	1979–1982	8.0	118	40	50	0	768.3	564	3.75
Bryan Woo	2023–2026	8.0	95	37	24	0	538.0	534	3.51
Matt Young	1983–1990	7.9	191	45	66	14	864.3	597	4.13
Joel Pineiro	2000–2006	7.6	185	58	55	1	996.0	658	4.48
Hisashi Iwakuma	2012–2017	7.1	150	63	39	2	883.7	714	3.42
Luis Castillo	2023–2026	6.4	120	40	39	0	675.0	662	3.83
Doug Fister	2009–2011	6.1	71	20	31	0	448.3	275	3.49
Marco Gonzales	2017–2023	6.0	152	61	47	0	855.7	633	4.11
Arthur Rhodes	2000–2008	5.9	337	30	16	10	296.3	329	2.95

Best single seasons

The highest wins above replacement any Seattle Mariners player has put up in one year.

BattingHR · RBI · AVG

1	Edgar Martinez1995 · 29 HR · 113 RBI · .356	8.9
2	Ken Griffey1997 · 56 HR · 147 RBI · .304	8.8
3	Cal Raleigh2025 · 60 HR · 125 RBI · .247	8.7
4	Alex Rodriguez1996 · 36 HR · 123 RBI · .358	8.7
5	Ken Griffey1998 · 56 HR · 146 RBI · .284	8.4
6	Alex Rodriguez2000 · 41 HR · 132 RBI · .316	8.4
7	Edgar Martinez1992 · 18 HR · 73 RBI · .343	8.3
8	Ken Griffey1996 · 49 HR · 140 RBI · .303	8.2
9	Ken Griffey1993 · 45 HR · 109 RBI · .309	8.0
10	Edgar Martinez1997 · 28 HR · 108 RBI · .330	7.8

PitchingW · SO · ERA

1	Randy Johnson1995 · 18 W · 294 SO · 2.48	7.6
2	Randy Johnson1998 · 19 W · 329 SO · 3.28	6.2
3	Randy Johnson1993 · 19 W · 308 SO · 3.24	5.8
4	Randy Johnson1997 · 20 W · 291 SO · 2.28	5.5
5	Erik Hanson1990 · 18 W · 211 SO · 3.24	5.5
6	Felix Hernandez2014 · 15 W · 248 SO · 2.14	5.3
7	Felix Hernandez2009 · 19 W · 217 SO · 2.49	5.2
8	Felix Hernandez2010 · 13 W · 232 SO · 2.27	4.9
9	Mark Langston1987 · 19 W · 262 SO · 3.84	4.9
10	Felix Hernandez2012 · 13 W · 223 SO · 3.06	4.9

How this page is built

Every row below is the club's own season, 1977 to 2026. That is 50 of them, 3,753–4,096 in all, a winning percentage of .478. No World Series yet.

Wins and losses on this page come straight from the source; the player tables do not. A season line in this database carries one club, the one where the player took the most plate appearances — or, for a pitcher, recorded the most outs — that year. So a player traded in July is credited to one side of the trade and not the other, and the career totals below are the club he mostly played for rather than a strict split. Wins above replacement is worked out per season here, and a season cannot be cut in half without recomputing it on a different basis, which would leave two numbers on this site that disagree. One basis, stated, is the honest version of that trade-off.

What the columns mean, and where the franchise begins

Finishing position means a different thing before and after divisions arrived in 1969. Also: why the club's history starts in 1977 here, and what the run columns are for.

The franchise boundary is the source database's, not ours. Each season carries a franchise identifier, and that identifier is what groups the rows on this page. It merges moves and renamings — Brooklyn and Los Angeles are one club under it — and it also keeps some things apart that share a city and a nickname: the National Association clubs of 1871 to 1875 are separate franchises from the National League clubs that followed them in the same towns. We could have merged those by hand, and then this page would carry a career record that no published source agrees with. Following the identifier means the totals here can be checked against somebody else's.

The best and worst of it: 2001 and 1978. The 2001 club went 116–46 (.716); the 1978 club went 56–104 (.350). Schedules were not always the same length — a nineteenth-century season could be seventy games and 2020 was sixty — so read the percentage rather than the win column when the two are far apart in time.

Finishing position means different things in different eras. Before 1969 there were no divisions, so the finish column is the club's place in the whole league. From 1969 it is the place within a division, which is a smaller field, and a third place in a six-team division is not the same achievement as a third place in a ten-team league. The division column says which one applies. Nothing on this page is postseason record: the wins and losses are regular season only, and the World Series, pennant and division marks in the result column say what the club went on to win, not how it did once it got there.

Runs scored and runs allowed are here because they explain the record. A club that wins more games than its run difference suggests has usually won a lot of close ones, and that tends not to repeat. The two columns are the cheapest way to see whether a season was as good as its win total, and they are the input to most of the modern estimates of how many games a team should have won. They are blank for the season still being played where the source has not published them yet.

Data for 1871 to 2025: Lahman Baseball Database 2025, compiled by SABR (Society for American Baseball Research) and licensed under CC BY-SA 3.0 Unported. Negro Leagues data licensed from Seamheads.com and included under SABR major-league recommendations (2021-02-11, 2024-06-03). This page groups the source database's team seasons by its franchise identifier and adds up the Seattle Mariners careers of the players on the season pages. — the WAR columns are computed here — and they are published under the same CC BY-SA 3.0 Unported licence, as ShareAlike requires. That database is published once a season is complete, so the 2026 figures on this site come from a different place: the MLB Stats API, whose notice reads “Copyright 2026 MLB Advanced Media, L.P. Use of any content on this page acknowledges agreement to the terms posted here http://gdx.mlb.com/components/copyright.txt”. Those numbers are MLB Advanced Media, L.P.’s, not SABR (Society for American Baseball Research)’s, and they carry that notice rather than the CC BY-SA 3.0 Unported licence above. Not affiliated with, endorsed by, or connected to Major League Baseball or any of its clubs.