+30 Phillies Single Season Home Run Leaders References. Barry bonds, 73, 2001 2. When mark mcgwire broke roger maris' single season record he brought back many of the fans who.

Web the top 500 single season national league home run leaders | baseball almanac. Web babe ruth and roger maris laid the land for sluggers like barry bonds, sammy sosa and mark mcguire. All of these heavy hitters are on the all time single season home.