1988 Seattle Mariners season

The Seattle Mariners 1988 season was their 12th since the franchise creation, and ended the season finishing seventh in the American League West with a record of.

Offseason

December 9, 1987: Phil Bradley and Tim Fortugno were traded by the Mariners to the Philadelphia Phillies for Glenn Wilson, Mike Jackson, and Dave Brundage.
December 21, 1987: John Moses was released by the Mariners.
December 22, 1987: Lee Guetterman, Clay Parker, and Wade Taylor were traded by the Mariners to the New York Yankees for Steve Trout and Henry Cotto.
January 19, 1988: John Rabb was signed as a free agent by the Mariners.

Regular season

Mark Langston became the ace of the pitching staff as he led the club in wins and strikeouts.

Opening Day starters

Notable transactions

May 23, 1988: John Christensen was released by the Mariners.
June 1, 1988: Steve Balboni was signed as a free agent by the Mariners.
June 1, 1988: Greg Pirkl was drafted by the Mariners in the 2nd round of the 1988 Major League Baseball draft. Player signed June 6, 1988.
June 8, 1988: Manager Dick Williams was fired and replaced by interim manager Jim Snyder.
July 21, 1988: Ken Phelps was traded by the Mariners to the New York Yankees for Jay Buhner, Rich Balabon and a player to be named later. The Yankees completed the deal by sending Troy Evers to the Mariners on October 12.
July 22, 1988: Glenn Wilson was traded by the Mariners to the Pittsburgh Pirates for Darnell Coles.

Major League debuts

Player stats

Batting

Starters by position

Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in

Pos	Player	G	AB	H	Avg.	HR	RBI
C		103	335	86	.257	4	33
1B		140	478	141	.295	18	69
2B		158	598	169	.283	4	41
3B		150	544	125	.230	14	62
SS		140	499	124	.248	12	52
LF		149	577	152	.263	15	56
CF		133	386	100	.259	8	33
RF		78	284	71	.250	3	17
DH		72	190	54	.284	14	32

Other batters

Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in

Player	G	AB	H	Avg.	HR	RBI
Steve Balboni	97	350	88	.251	21	61
Dave Valle	93	290	67	.231	10	50
Darnell Coles	55	195	57	.292	10	34
Jay Buhner	60	192	43	.224	10	25
Mike Kingery	57	123	25	.203	1	9
	31	88	18	.205	0	6
Mario Díaz	28	72	22	.306	0	9
Bruce Fields	39	67	18	.269	1	5
Dave Hengel	26	60	10	.167	2	7
Greg Briley	13	36	9	.250	1	4
Edgar Martínez	14	32	9	.281	0	5
Bill McGuire	9	16	3	.188	0	2
	9	14	5	.357	0	4
Brick Smith	4	10	1	.100	0	1

Pitching

Starting pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Player	G	IP	W	L	ERA	SO
	35	261.1	15	11	3.34	235
	37	228.2	9	15	3.78	182
	38	174.2	8	12	4.59	47
	21	135.0	7	9	3.07	102
	20	114.2	6	10	5.89	63
	15	56.1	4	7	7.83	14
	6	41.2	2	3	3.24	36
	5	23.0	0	1	6.26	9

Other pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Player	G	IP	W	L	ERA	SO
Edwin Núñez	14	29.1	1	4	7.98	19
Dennis Powell	12	18.2	1	3	8.68	15

Relief pitchers

Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts

Player	G	W	L	SV	ERA	SO
	40	5	8	15	3.54	54
Mike Jackson	62	6	5	4	2.63	76
Jerry Reed	46	1	1	1	3.96	48
Rod Scurry	39	0	2	2	4.02	33
Bill Wilkinson	30	2	2	2	3.48	25
Julio Solano	17	0	0	3	4.09	10
Gene Walter	16	1	0	0	5.13	13

Farm system

AZL club affiliation shared with Boston Red Sox