Most hits in a season, 1988-20253 leaders Most home runs in a season, 1988-20253 leaders Most doubles in a season, 1988-20253 leaders Most triples in a season, 1988-20254 leaders Most walks in a season, 1988-20253 leaders Most rbi in a season, 1988-20253 leaders Most extra-base hits in a season, 1988-20255 leaders These are era records, not all-time records: the page covers 1988-2025, where the game-by-game record is complete. Earlier marks, such as George Sisler's 257 hits of 1920 or Hack Wilson's 191 RBI of 1930, predate the coverage and are not derived here.
Totals come from the same per-game batting lines as the streak leaderboards: one line per player per game, summed per season. Every player-season total was cross-checked field-by-field against the independently staged Retrosheet season aggregate before shipping (33,224 of 33,224 matched exactly), so the record holders above are receipts-verified, not transcribed. Walks include intentional walks; extra-base hits are doubles, triples and home runs.
Single-season record questions
Who has the most hits in a single season since 1988?
Ichiro Suzuki collected 262 hits in 2004 with the Seattle Mariners, the era record and the recognized major-league mark.
What is the single-season home run record of this era?
Barry Bonds hit 73 home runs for the San Francisco Giants in 2001, followed by Mark McGwire's 70 in 1998 and Sammy Sosa's 66, also 1998.
Are these records official MLB records?
They are the totals derived from Retrosheet play-by-play data, cross-checked against the staged season aggregate. They match the recognized major-league records for this era.
Why 1988-2025?
That is the complete play-by-play coverage staged for this project: every regular-season game from 1988 through 2025. Earlier seasons lack event-level data here, so their records are out of scope.