Events in Sport
- May 2 European Cup Final, Amsterdam: Eusébio scores twice as defending champions Benfica beat Real Madrid, 5-3; Puskás, hits all 3 for Madrid
- May 5 88th Kentucky Derby: Bill Hartack aboard Decidedly wins in 2:00.4
Event of Interest
May 13 LPGA Western Open Women's Golf, Montgomery CC: Mickey Wright wins on the 4th hole of a sudden-death playoff with Mary Lena Faulk

Mickey Wright
- May 19 87th Preakness: John Rotz aboard Greek Money wins in 1:56.2
Event of Interest
May 19 Stan Musial breaks Honus Wagner's NL hit record with 3,431

Stan Musial

Honus Wagner
Baseball Record
May 22 Roger Maris walks 5 times (record 4 intentionally) in a 9 inning game

Roger Maris
Baseball Record
May 23 Joe Pepitone 2nd Yankee to hit 2 HRs in 1 inning (Joe DiMaggio)

Joe Pepitone
Birthdays in Sport
- May 1 Gary Clark, American NFL wide receiver (Super Bowl 1987, 91; Washington Redskins; Pro Bowl 1986, 87, 90, 91; All-Pro 1986, 87, 91), born in Radford, Virginia
- May 1 Paula Weishoff, American volleyballer (Olympic silver 1984, bronze 1992), born in Hollywood, California
- May 2 Jimmy White, English professional snooker player, born in Tooting, England
- May 6 Neil Foster, cricketer (England right-fast medium)
- May 8 Terry Baker, CFL kicker (Montreal Alouettes)
- May 10 Joey Meyer, baseball player
- May 10 Robby Thompson, infielder (SF Giants), born in West Palm Beach, Florida
- May 11 Steve Bono, NFL quarterback (KC Chiefs, GB Packers-Super Bowl 31)
- May 12 Emilio Estevez, American actor (Breakfast Club, Young Guns, Mighty Ducks), born in NYC, New York
- May 12 Mark Bradshaw, Happy Camp California, diver (Olympics 1996)
- May 13 Sean McDonough, American sports newscaster
- May 16 Gary Crocker, cricketer (Zimbabwe Test batsman)
- May 17 Scott Case, NFL safety (Dallas Cowboys)
- May 18 Mike Whitmarsh, beach volleyballer (Olympic silver 1996), born in San Diego, California
- May 23 Keith Brantley, Scott AFB Ill, marathoner (Olympics 1996)
- May 24 Bev Lidyoff, Huntington Park Ca, WPVA volleyballer (US Open-7th-1994)
- May 24 Dorothy Trapp, equestrian 3-day (Olympics 1996)
- May 24 Héctor Camacho, Puerto Rican boxer (WBC super featherweight 1983-84, WBC lightweight 1985-87, WBO jr. welterweight twice 1989-1992), born in Bayamón, PR
- May 25 Zulqarnain, Pakistani cricketer (last person in alphabetical order to play Test), born in Lahore, Punjab, Pakistan
- May 27 Ravi Shastri, Indian cricketer, all-rounder (1981-92), commentator and coach of India (2017-), born in Bombay, Maharashtra, India
- May 27 Ray Borner, Australian basketball center (Olympics 1984, 88, 92, 96)
- May 29 Eric Davis, American MLB outfielder (3-time Gold Glove 1987-99), born in Los Angeles, California
- May 29 Fandi Ahmad, Singaporean soccer striker, manager (Singapore 101 caps), born in Singapore
- May 30 Jan Gunnarsson, Swedish tennis star
- May 30 John Alt, NFL tackle (KC Chiefs)
- May 31 Henry Williams, CFL receiver (Edmonton Eskimos)
- May 31 Joe Orsulak, Glen Ridge NJ, outfielder (Florida Marlins)
Deaths in Sport
- May 5 Ernest Tyldesley, English cricketer (990 runs in 14 Tests for England), dies at 73