Most home runs by a player within their first 5 career MLB seasons: 215- Ralph Kiner (1946-50) 201- Albert Pujols (2001-05) 190- Eddie Mathews (1952-56) 179- Pete Alonso (2019-23 via 2 in Monday's 11-2 @Mets win vs the Cubs) 177- Ryan Howard (2004-08) 170- Mark Teixeira (2003-07) pic.twitter.com/wWKUehgQFj