Roger Maris – 61
Maris broke Ruth’s record in 1961 when he became the first player to hit 61 homers. We should note that the American League expanded the schedule this year for the first time. This meant that he played eight more games than Ruth so he had more opportunities to break the record (via The Atlantic).
Nonetheless, he remains one of baseball’s greatest sluggers and this was a legendary season. This is still an AL record but it was controversial because he hit his last homer in the final game of the year. That’s why many diehards think that Ruth’s achievement was more impressive than Maris’.