Ruth broke the old season home run record of 27 in 1919 and went on to reach 60 in 1927. Each homer after 27 was a new record: 60 - 27 = 33.
That's 576 + 33 = 609. Ruth had a few other records, including some in the World Series:
- most consecutive shutout innings pitched: 29.66; broken by Whitey Ford: 32
- most career home runs: 15; broken by Mickey Mantle: 18
- most home runs in a game: 3; tied by Reggie Jackson and Pablo Sandoval. Ruth did it twice.
Baseball Digest December 1960
via Wikimedia Commons
Pete Rose passed Aaron in outs in 1982 and soared to 10,328. 10,328 - 9,136 = 1,192. Rose also broke the career hit record of Ty Cobb in 1985: 4,256 - 4,189 = 67.
Rickey Henderson had 468 more stolen bases than Lou Brock: 1,406-938.
OK, you get the idea. Who set the most records? Beats me. Too much work.