The Seattle Mariners lost their most games in a season in 1978, with 104 losses.

Interpreted as:

worst mariners losses this regular season

	TEAM	L	SEASON	W	L%	G	W%	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Mariners	104	1978	56	.650	160	.350	5,358	614	1,327	229	37	97	571	522	22	702	123	47	6,023	1,921	363	68	53	25	112	.248	.314	.359	.673
2	Mariners	103	1980	59	.636	163	.364	5,489	610	1,359	211	35	104	564	483	19	727	116	62	6,141	1,952	350	106	44	44	136	.248	.308	.356	.664
3	Mariners	102	1983	60	.630	162	.370	5,336	558	1,280	247	31	111	536	460	24	840	144	80	5,905	1,922	389	40	45	31	113	.240	.301	.360	.661
4	Mariners	101	2010	61	.623	162	.377	5,409	513	1,274	227	16	101	485	459	39	1,184	142	39	5,989	1,836	344	42	40	33	110	.236	.298	.339	.637
5	Mariners	101	2008	61	.623	162	.377	5,643	671	1,498	285	20	124	631	417	38	890	90	32	6,176	2,195	429	36	42	44	137	.265	.318	.389	.707
6	Mariners	99	2004	63	.611	162	.389	5,722	698	1,544	276	20	136	658	492	54	1,058	110	42	6,362	2,268	432	46	48	49	131	.270	.331	.396	.727
7	Mariners	98	1992	64	.605	162	.395	5,564	679	1,466	278	24	149	638	474	38	841	100	55	6,179	2,239	451	52	51	47	148	.263	.323	.402	.725
8	Mariners	98	1977	64	.605	162	.395	5,460	624	1,398	218	33	133	589	426	35	769	110	67	6,044	2,081	384	81	42	22	114	.256	.312	.381	.693
9	Mariners	95	2011	67	.586	162	.414	5,421	556	1,263	253	22	109	534	435	37	1,280	125	40	5,972	1,887	384	38	41	33	82	.233	.292	.348	.640
10	Mariners	95	1986	67	.586	162	.414	5,498	718	1,392	243	41	158	681	572	34	1,148	93	76	6,185	2,191	442	52	29	38	125	.253	.326	.399	.724
11	Mariners	95	1979	67	.586	162	.414	5,544	711	1,490	250	52	132	676	515	28	725	126	52	6,202	2,240	434	61	54	45	158	.269	.331	.404	.735
12	Mariners	94	2019	68	.580	162	.420	5,500	758	1,305	254	28	239	730	588	58	1,581	115	47	6,197	2,332	521	14	37	7	83	.237	.316	.424	.740
13	Mariners	93	2005	69	.574	162	.426	5,507	699	1,408	289	34	130	657	466	48	986	102	47	6,095	2,155	453	37	37	50	115	.256	.317	.391	.709
14	Mariners	93	1988	68	.578	161	.422	5,436	664	1,397	271	27	148	617	461	38	787	95	61	6,017	2,166	446	40	42	24	135	.257	.317	.398	.716
15	Mariners	91	2013	71	.562	162	.438	5,558	624	1,318	249	17	188	597	529	31	1,353	49	23	6,172	2,165	454	26	28	21	122	.237	.306	.390	.695
16	Mariners	89	1989	73	.549	162	.451	5,512	694	1,417	237	29	134	653	489	45	838	81	55	6,133	2,114	400	35	52	40	109	.257	.320	.384	.703
17	Mariners	88	1985	74	.543	162	.457	5,521	719	1,410	277	38	171	686	564	31	942	94	35	6,185	2,276	486	28	41	36	147	.255	.326	.412	.738
18	Mariners	88	1984	74	.543	162	.457	5,546	682	1,429	244	34	129	635	519	42	871	116	62	6,211	2,128	407	66	38	35	101	.258	.324	.384	.708
19	Mariners	87	2012	75	.537	162	.463	5,494	619	1,285	241	27	149	584	466	30	1,259	104	35	6,057	2,027	417	32	35	21	95	.234	.296	.369	.665
20	Mariners	86	2015	76	.531	162	.469	5,544	656	1,379	262	22	198	624	478	36	1,336	69	45	6,131	2,279	482	38	35	31	123	.249	.311	.411	.722
21	Mariners	86	1982	76	.531	162	.469	5,626	651	1,431	259	33	130	614	456	22	806	131	82	6,181	2,146	422	42	35	31	113	.254	.311	.381	.692
22	Mariners	85	1998	76	.528	161	.472	5,628	859	1,553	321	28	234	822	558	57	1,081	115	39	6,327	2,632	583	36	48	26	107	.276	.345	.468	.812
23	Mariners	85	1990	77	.525	162	.475	5,474	640	1,419	251	26	107	610	596	40	749	105	51	6,205	2,043	384	41	54	41	140	.259	.333	.373	.707
24	Mariners	84	2017	78	.519	162	.481	5,551	750	1,436	281	17	200	714	487	78	1,267	89	35	6,165	2,351	498	14	35	31	131	.259	.325	.424	.749
25	Mariners	84	2006	78	.519	162	.481	5,670	756	1,540	266	42	172	703	404	63	974	106	37	6,213	2,406	480	38	38	49	117	.272	.325	.424	.749

Unlock 2x data

More MLB News

Daylen Lile homers as Nationals top Rockies 7-1 to split 4-game series

Aug 27, 2026

MLB proposes limiting free agent signings to a few weeks in December and then from February on

Aug 27, 2026

Dodgers RHP Roki Sasaki headed to 15-day injured list with middle finger blister

Aug 27, 2026

This Date in Baseball-Week Ahead

Aug 27, 2026

This Date in Baseball - Eric Gagne set a major league record with his 44th straight save this season

Aug 27, 2026

Butler homers and Williams hits a 2-run triple as the Athletics beat the Twins 7-4

Aug 27, 2026

More Mariners Stats

Team Batting Leaders

20

Rodríguez

RBI

58

Arozarena

AVG

.272

Arozarena

Team Pitching Leaders

11

Gilbert

162

Gilbert

ERA

3.36

Gilbert

Team Rankings

155

14th

526

30th

1,143

11th

ERA

4.10

14th

2026 Division Standings

TEAM	W	L	PCT	GB
Astros	66	67	.496
Rangers	66	68	.493	0.5
Mariners	64	70	.478	2.5
Athletics	53	81	.396	13.5
Angels	52	82	.388	14.5

Schedule

DATE	MATCHUP			TIME (ET)
Fri 8/28	SEA	@	TOR	7:15 PM
Sat 8/29	SEA	@	TOR	3:07 PM
Sun 8/30	SEA	@	TOR	1:37 PM
Mon 8/31	SEA	@	BOS	6:45 PM
Tue 9/1	SEA	@	BOS	6:45 PM

Last Game

Phillies

74 - 60

Final

Mariners

64 - 70

Wed 26 Aug 2026

MLB 2026 Batting Leaders

HR Leaders

40

Schwarber

37

Olson

36

Goodman

RBI Leaders

100

Stewart

99

Burleson

97

Walker

Batting Average Leaders

.322

Alvarez

.318

Arraez

.308

Simpson

Hit Leaders

161

Arraez

160

Lopez

152

Alvarez

Run Leaders

100

Wood

93

Crow-Armstrong

92

Olson

OBP Leaders

.437

Alvarez

.396

Kurtz

.393

Wood

SLG Leaders

.614

Alvarez

.562

García

.550

Crow-Armstrong

SB Leaders

43

Nuñez

36

Chisholm

35

Simpson

MLB 2026 Pitching Leaders

Win Leaders

16

Sánchez

16

Gray

15

Griffin

Strikeout Leaders

216

Misiorowski

209

Cease

204

Williams

ERA Leaders

1.68

Misiorowski

2.16

Schlittler

2.20

Sale

WHIP Leaders

0.76

Misiorowski

0.90

Yamamoto

0.93

Rasmussen

K/9 Leaders

13.41

Misiorowski

13.03

Cease

11.77

Williams

K/BB Leaders

6.55

Misiorowski

5.93

Sale

5.72

Rasmussen

Walk Leaders

22

Martinez

25

Rasmussen

28

Sale

MLB Fantasy 2026

FanDuel Points Leaders

2,225.2

Ohtani

1,869.1

Crow-Armstrong

1,773.1

Alvarez

DraftKings Points Leaders

1,563.6

Ohtani

1,419

Crow-Armstrong

1,330

Alvarez

MLB 2026 Betting

Best Record ATS

80-53

76-58

77-59

73-60

74-61

73-61

Worst Record ATS

51-83

54-79

55-79

58-76

61-72

62-72

MLB 2026 Standings

NL East	W	L	PCT	GB
Braves	78	55	.586
Phillies	74	60	.552	4.5
Marlins	68	66	.507	10.5
Nationals	63	73	.463	16.5
Mets	60	73	.451	18.0
NL Central	W	L	PCT	GB
Brewers	82	51	.617
Cubs	76	58	.567	6.5
Cardinals	67	68	.496	16.0
Pirates	65	70	.481	18.0
Reds	63	71	.470	19.5
NL West	W	L	PCT	GB
Dodgers	80	53	.602
Padres	72	62	.537	8.5
Diamondbacks	71	63	.530	9.5
Giants	54	79	.406	26.0
Rockies	52	82	.388	28.5

AL East	W	L	PCT	GB
Rays	79	54	.594
Yankees	75	57	.568	3.5
Red Sox	73	60	.549	6.0
Blue Jays	65	69	.485	14.5
Orioles	65	69	.485	14.5
AL Central	W	L	PCT	GB
White Sox	70	63	.526
Guardians	68	66	.507	2.5
Twins	64	70	.478	6.5
Tigers	62	71	.466	8.0
Royals	59	75	.440	11.5
AL West	W	L	PCT	GB
Astros	66	67	.496
Rangers	66	68	.493	0.5
Mariners	64	70	.478	2.5
Athletics	53	81	.396	13.5
Angels	52	82	.388	14.5

MLB 2026 Scores & Schedule

Scores

DATE	MATCHUP			SCORE
Wed 8/12	BAL	@	MIN	5-7
Wed 8/12	PHI	@	STL	1-7
Wed 8/12	HOU	@	SFG	2-1
Wed 8/12	MIL	@	SDP	3-4
Wed 8/12	PIT	@	MIA	2-8

Schedule

DATE	MATCHUP			TIME (ET)
Thu 8/27	HOU	@	NYY	7:05 PM
Thu 8/27	KCR	@	TOR	7:07 PM
Thu 8/27	MIL	@	NYM	7:10 PM
Thu 8/27	LAD	@	ATL	7:15 PM
Thu 8/27	AZ	@	SFG	9:45 PM

The Seattle Mariners lost their most games in a season in 1978, with 104 losses.

Interpreted as:

Related Searches

More MLB News

More Mariners Stats

20

58

.272

11

162

3.36

MLB 2026 Batting Leaders

40

37

36

100

99

97

.322

.318

.308

161

160

152

100

93

92

.437

.396

.393

.614

.562

.550

43

36

35

MLB 2026 Pitching Leaders

16

16

15

216

209

204

1.68

2.16

2.20

0.76

0.90

0.93

13.41

13.03

11.77

6.55

5.93

5.72

22

25

28

MLB Fantasy 2026

2,225.2

1,869.1

1,773.1

1,563.6

1,419

1,330

MLB 2026 Betting

MLB 2026 Standings

MLB 2026 Scores & Schedule

Scores

Schedule