- May 2 1st woman jockey at Kentucky Derby (Diane Crump)
- May 2 96th Kentucky Derby: Mike Manganello on Dust Commander wins 2:03.4
- May 6 European Cup Final, San Siro, Milan: Feyenoord beats Celtic, 2-1; first time title won by a Dutch club
- May 8 24th NBA Championship: NY Knicks beat LA Lakers 113 to 91 at Madison Square Garden, NYC; winning final series 4 games to 3
- May 8 NBA championship: Knicks beat Lakers, 113-99
Sports History
May 10 Atlanta Braves' Hoyt Wilhelm pitches in his 1,000th game, loses to Cards 6-5
Stanley Cup
May 10 Stanley Cup Final, Boston Garden, Boston, MA: Bobby Orr scores famous OT winner as Boston beats St. Louis Blues, 4-3 for 4-0 series sweep; Bruins its first title since 1941
Baseball Record
May 12 Ernie Banks hits his 500th home run
Baseball Record
May 17 Hank Aaron becomes 9th player to get 3,000 hits
Sports History
May 22 Mel Stottlemyre sets record by walking 11, but wins 2-0