Jim Bunning may hold the all-time record for 19-game winning seasons. No one else in his era fell one win short of 20 games so many times. And he did it in both leagues, AL-Detroit and NL-Phillies.
#1 in 1959 Topps. Officially known as Assassin according to stanthemanfan 3/31/2014 and god of minor league basketball according to cammb.