Jesse Owens wins the 100 meter dash in Berlin.
In Canada and Russia: Paul Henderson’s goal with 30-odd seconds remaining to give Canada the win in an eight-game series with the Soviet Union. He saved the free world.
Best fight ever in Canada: Archie Moore knocking out Yvon Durelle after he was flattened something like five times in the early rounds.
I second Mazeroski. What made that World Series so exciting was that the Yanks were a powerhouse who clobbered the upstart Pirates in three games. The Pirates squeaked out three wins and then the last game went back and forth like a ping pong match until Mazeroski stepped up.