The Seattle Mariners are a Major League Baseball (MLB) team who have participated in 46 seasons since their inception in 1977. Through July 16, 2022, they have played 7,156 games, winning 3,385, losing 3,769, and tying two, for a winning percentage of .473. This list documents the superlative records and accomplishments of team members during their tenures as Seattle Mariners in Major League Baseball's American League West.

Ichiro Suzuki holds the most franchise records as of the end of the 2012 season, with ten, including best single-season batting average, most career hits, and most career triples. He is followed by Edgar Martínez, who holds nine records, including best career on-base percentage and the single-season walk record.

Two Mariners players currently hold Major League Baseball records. Ichiro holds the record for most single-season hits and singles, obtaining both in 2004. Mike Cameron is tied with 14 others for the most home runs in a game, with four. Additionally, Gene Walter, a Mariner for the 1988 season, is tied for the American League lead in balks for a single game, which he achieved on July 18 in a game against the Detroit Tigers.

Table key

RBI	Run(s) batted in
ERA	Earned run average
OPS	On-base percentage plus slugging percentage
*	Tie between two or more players/teams
†	American League record
§	Major League record

Batting statistics; pitching statistics

Career batting records
Statistic	Player	Record	Mariners career	Ref
Batting average	Ichiro Suzuki	.321	2001–2012, 2018–2019
On-base percentage	Edgar Martínez	.418	1987–2004
Slugging percentage	Alex Rodriguez	.561	1994–2000
OPS	Alex Rodriguez	.934	1994–2000
Hits	Ichiro Suzuki	2,542	2001–2012, 2018–2019
Total bases	Edgar Martínez	3,718	1987–2004
Singles	Ichiro Suzuki	2,069	2001–2012, 2018–2019
Doubles	Edgar Martínez	514	1987–2004
Triples	Ichiro Suzuki	79	2001–2012, 2018–2019
Home runs	Ken Griffey Jr.	417	1989–1999 2009–2010
RBI	Edgar Martínez	1,261	1987–2004
Bases on balls	Edgar Martínez	1,283	1987–2004
Strikeouts	Jay Buhner	1,375	1988–2001
Stolen bases	Ichiro Suzuki	438	2001–2012, 2018–2019

Career pitching records
Statistic	Player	Record	Mariners career	Ref
Wins	Félix Hernández	169	2005–2019
Losses	Félix Hernández	136	2005–2019
Win–loss percentage	Paul Abbott	.679	1998–2002
ERA	Félix Hernández	3.42*	2005–2019
Saves	Kazuhiro Sasaki	129	2000–2003
Strikeouts	Félix Hernández	2,439	2005–2019
Shutouts	Randy Johnson	19	1989–1998
Games	Jeff Nelson	432	1992–1995 2001–2003 2005
Innings	Félix Hernández	2,729.2	2005–2019
Games started	Félix Hernández	418	2005–2019
Complete games	Mike Moore	56	1982–1988
Walks	Randy Johnson	884	1989–1998
Hits allowed	Félix Hernández	2,487	2005–2019
Wild pitches	Félix Hernández	156	2005–2019
Hit batsmen	Félix Hernández	105	2005–2019

Batting statistics; pitching statistics;

Single-season batting records
Statistic	Player	Record	Season	Ref(s)
Batting average	Ichiro Suzuki	.372	2004
Home runs	Ken Griffey Jr.	56*	1997, 1998
RBI	Ken Griffey Jr.	147	1997
Runs	Alex Rodriguez	141	1996
Hits	Ichiro Suzuki	262	2004
Singles	Ichiro Suzuki	225	2004
Doubles	Alex Rodriguez	54	1996
Triples	Ichiro Suzuki	12	2005
Stolen bases	Harold Reynolds	60	1987
At bats	Ichiro Suzuki	704	2004
Slugging percentage	Ken Griffey Jr.	.674	1994
Extra-base hits	Ken Griffey Jr.	93	1997
Total bases	Ken Griffey Jr.	393	1997
On-base percentage	Edgar Martínez	.479	1995
OPS	Edgar Martínez	1.107	1995
Walks	Edgar Martínez	123	1996
Strikeouts	Eugenio Suárez	196	2022

Single-season pitching records
Statistic	Player	Record	Season	Ref
Wins	Jamie Moyer	21	2003
Losses	Matt Young	19*	1985
Losses	Mike Moore	19*	1987
Strikeouts	Randy Johnson	308	1993
ERA	Félix Hernández	2.14	2014
Earned runs allowed	Mark Langston	129	1986
Hits allowed	Mike Moore	279	1986
Base on balls	Randy Johnson	152	1991
Shutouts	Félix Hernández	5	2012
Saves	Edwin Díaz	57	2018
Games	Ed Vande Berg	78	1982
Starts	Mike Moore	37	1986
Complete games	Mike Moore	14*	1985
Complete games	Mark Langston	14*	1987
Innings	Mark Langston	272.0	1987

Source:

Single-game batting records
Statistic	Player	Record	Date
Hits	Raúl Ibañez	6	September 22, 2004
At bats	Joey Cora	7	June 11, 1996
RBI	Alvin Davis	8*	May 9, 1986
RBI	Mike Blowers	8*	May 24, 1995
RBI	Mike Cameron	8*	August 19, 2001
Home runs	Mike Cameron	4	May 2, 2002
Runs	Ken Griffey Jr.	5*	May 24, 1996
Runs	Edgar Martínez	5*	May 17, 1999
Runs	Alex Rodriguez	5*	April 16, 2000
Strikeouts	Miguel Olivo	5	July 29, 2004

Single-game pitching records
Statistic	Player	Record	Date
Hits allowed	Greg Hibbard	15	May 24, 1994
Runs allowed	Jamie Moyer	12	August 9, 2000
Runs allowed (team)	Félix Hernández, bullpen	22	August 15, 2015
Walks allowed	Rick Jones	11	June 18, 1977
Home runs allowed	Mark Langston	5*	April 18, 1988
Home runs allowed	Jamie Moyer	5*	July 21, 2006
Balks	Gene Walter	4	July 18, 1988
Innings pitched	Mike Moore	11	August 14, 1985
Strikeouts	Randy Johnson	19*	June 24, 1997
Strikeouts	Randy Johnson	19*	August 8, 1997

Source:

Team season batting records
Statistic	Record	Season
Home runs	264	1997
Runs	993	1996
Hits	1,637	2001
Batting average	.288	2001
Walks	775	2000
Intentional walks	73	1993
Most runners left on base	1,257	2001
Strikeouts	1,259	2012
Stolen bases	174*	1987, 2001

Team season pitching records
Statistic	Record	Season
Hits allowed	1,613	1999
Runs allowed	834	1999
Home runs allowed	216	1996
Strikeouts	1,207	1997
shutouts	14	2001

Source: Baseball-Reference.com

Statistics current through 5/5/23.

Team all-time records
Statistic	Record
Home runs	7,305
Runs	32,218
Hits	63,915
Batting average	.258
ERA	4.32
Runs allowed	34,036

• Baseball statistics
• Seattle Mariners award winners and league leaders

• Cameron is one of 18 players in MLB history to hit 4 home runs in one game.
• Tied with John Dopson, Rick Honeycutt, Vic Raschi, and Bobby Witt

• "Seattle Mariners all-time batting records at Baseball-Reference.com".
• "Seattle Mariners all-time pitching records at Baseball-Reference.com".