List of Seattle Mariners team records
The Seattle Mariners are a Major League Baseball (MLB) team who have participated in 42 seasons since their inception in 1977. Through 2012, they have played 5,707 games, winning 2,664, losing 3,043, and tying two, for a winning percentage of .467. 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