Sports History
May 17 First Tim Horton's coffee and donut shop opens in Hamilton, Ontario by NHL player Tim Horton
- May 17 Phillies triple play Houston Colt .45s
- May 20 Buster Mathis beats future world heavyweight champion Joe Frazer on points at trials in Flushing, NY to qualify for US Olympic boxing team; Mathis injures thumb, replaced by Frazier who wins gold medal
- May 23 Dale Greig runs female marathon world record (3:27:45)
Sports History
May 24 Longest HR (471') in Baltimore Memorial Stadium (Harmon Killebrew, Minnesota Twins)
French Open Women's Tennis
May 30 French Championships Women's Tennis: Margaret Court of Australia wins her second French singles crown; beats Maria Bueno of Brazil 5-7, 6-1, 6-2
Indy 500
May 30 Indianapolis 500: A. J. Foyt wins but race primarily remembered for fiery 7-car accident resulting in deaths of Eddie Sachs and Dave MacDonald; last race won by a front-engined "roadster"
- May 31 SF Giants beat NY Mets, 8-6, in 23 innings (2nd game) (7 hrs 32 mins)