The Seattle Mariners are a Major League Baseball (MLB) team who have participated in 49 seasons since their inception in 1977. Through the end of the , they have won 3,689 games, lost 4,022, and tied two, for a winning percentage of .478. This list documents the superlative records and accomplishments of team members during their tenures as Mariners in MLB's American League (AL) 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 Seattle players currently hold MLB records. Suzuki holds the record for most single-season hits and singles, obtaining both in 2004. Mike Cameron is tied with 20 others for the most home runs in a game, with four. Additionally, Gene Walter is tied for the AL lead in balks for a single game, which he achieved on July 18, 1988.
Table key + Table keyRBIRun(s) batted inERAEarned run averageOPSOn-base percentage plus slugging percentage*Tie between two or more players/teamsAmerican League record§Major League record
Individual career records Batting statistics; pitching statistics Career batting recordsStatistic PlayerRecord Mariners careerRefBatting average.321–, –On-base percentage.418–Slugging percentage.561–OPS.934–Hits2,542–, –Total bases3,718–Singles2,069–, –Doubles514–Triples79–, –Home runs417––RBI1,261–Walks1,283–Strikeouts1,375–Stolen bases438–, –
Career pitching recordsStatistic PlayerRecord Mariners careerRefWins169–Losses136–Win–loss percentage.679–ERA3.42*–Saves129–Strikeouts2,439– Shutouts19–Games432––Innings2,729–Games started418–Complete games56–Walks884–Hits allowed2,487–Wild pitches156–Hit batsmen105–
Individual single-season records Batting statistics; pitching statistics;
Single-season batting recordsStatistic PlayerRecord SeasonRef(s)Batting average.372Home runs60RBI147Runs141Hits262§Singles225§Doubles54Triples12Stolen bases60At bats704Slugging percentage.674Extra-base hits93Total bases393On-base percentage.479OPS1.107Walks123StrikeoutsEugenio Suárez1962022 Single-season pitching recordsStatistic PlayerRecord SeasonRefWins21Losses19*Losses19*Strikeouts308ERA2.14Earned runs allowed129Hits allowed279Walks152Shutouts5Saves57Games78Starts37Complete games14*Complete games14*Innings 272.0
Individual single-game records Source:
Single-game batting recordsStatisticPlayerRecord DateHits6At bats7RBI8*RBI8*RBI8*Home runs4§Runs5*Runs5*Runs5*Strikeouts5
Single-game pitching recordsStatisticPlayerRecord DateHits allowed15Runs allowed12Runs allowed (team), bullpen22Walks allowed11Home runs allowed5*Home runs allowed5*Balks4Innings pitched11Strikeouts19*Strikeouts19*
Team season records Source: Team season batting recordsStatistic Record SeasonHome runs264Runs993Hits1,637Batting average.288Walks775Intentional walks73Most runners left on base1,257Strikeouts1,259Stolen bases174*, Team season pitching recordsStatistic Record Season Hits allowed1,613Runs allowed834Home runs allowed216Strikeouts1,207Shutouts14
Team all-time records Source: Baseball-Reference.com Statistics current through 5/5/23. Team all-time recordsStatistic Record Home runs7,305Runs32,218Hits63,915Batting average.258ERA4.32Runs allowed34,036
See also Baseball statistics Seattle Mariners award winners and league leaders
Notes Cameron is one of 21 players in MLB history to hit 4 home runs in one game. Tied with John Dopson, Rick Honeycutt, Vic Raschi, and Bobby Witt
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