Most Home Runs by a Rookie

Through Sept. 25, 2017 50 — Aaron Judge, New York Yankees, 2017 49 — Mark McGwire, Oakland Athletics, 1987 39 — x-Cody Bellinger, Los Angele…

Single Season 50 Home Runs

Through Sept. 25 x-active 73 — Barry Bonds, San Francisco Giants, 2001 70 — Mark McGwire, St. Louis Cardinals, 1998 66 — Sammy Sosa, Chicago…