Boston set and later tied the long jump world record while collecting a complete set of medals with gold ('60), silver ('64), and bronze ('68).

Not as well-known is that Boston coached another US long jumper of note, Bob Beamon, on a crucial day in Beamon's life. 

Beamon credits Boston with advising him - after two fouls in the preliminaries - to move his mark back substantially at the 1968 Olympic Games. Beamon had a fair 3rd jump and was able to participate in the final the next day - the day Beamon flew past the 28' and 29' barriers to track and field immortality with his epic 29' 2.5" world record.