Kentucky Derby
May 1 91st Kentucky Derby: Bill Shoemaker wins aboard Lucky Debonair, the third of his 4 Derby victories
- May 1 Stanley Cup, Montreal Forum, Montreal, Quebec: Dick Duff has a goal and 2 assists as Montreal Canadiens beat Chicago Blackhawks, 4-0 in Game 7 to take title 4-3
Baseball Record
May 4 Willie Mays 512th HR breaks Mel Ott's 511th NL record
- May 6 Bill Lawry (210) & Bob Simpson (201) complete record opening stand of 382 in Australia's 1st innings, drawn 4th Test v West Indies in Bridgetown
Sports History
May 6 Jerry Sloan is selected by the Baltimore Bullets as the fourth overall pick of the 1965 NBA draft
Baseball History
May 16 Baltimore Oriole Jim Palmer's pitching debut, beats Yankees 7-5 & homers
- May 19 West Ham United of England win 5th European Cup Winner's Cup against 1860 München of West Germany 2-0 in London
Ali KOs Liston
May 25 Muhammad Ali KOs Sonny Liston at 2:12 of round 1 at Central Maine Civic Center, Lewiston to retain his WBC/WBA heavyweight boxing title
- May 27 10th European Cup Final, San Siro, Milan: Jair da Costa scores winner as defending champions Internazionale beat Benfica, 1-0
World Record
May 29 American long jumper Ralph Boston sets then world record 27' 4 3/4" (8.35m) at Modesto, California
French Open Men's Tennis
May 29 French Championships Men's Tennis: Fred Stolle beats fellow Australian Tony Roche 3-6, 6-0, 6-2, 6-3 for his first Grand Slam singles title
- May 29 French Championships Women's Tennis: Australian Lesley Turner Bowrey wins her 2nd French singles crown; upsets doubles partner Margaret Smith 6-3, 6-4
- May 29 Phillies Dick Allen hits 529' HR out of Connie Mack Stadium