Events in Sport
- May 1 Rotterdam soccer club Black White '28 is established (2000 Women's KNVB Cup); declared bankrupt 2004
- May 11 53rd Preakness: Raymond Sonny Workman aboard Victorian wins in 2:00.2
British Golf Open
May 11 British Open Men's Golf, Royal St George's GC: Walter Hagen wins 3rd of his 4 Open Championship titles, 2 strokes ahead of fellow American Gene Sarazen

Walter Hagen
Birthdays in Sport
Betsy Rawls
May 4 Betsy Rawls, American golfer (US Women's Open: 1951, 53, 57, 60), born in Spartanburg, South Carolina

Betsy Rawls
- May 4 Wolfgang von Trips, German racing driver, born in Cologne, Germany (d. 1961)
- May 9 Barbara Ann Scott, Canadian figure skater (Olympic gold 1948, World champion 1947-48), born in Ottawa, Ontario (d. 2012)
- May 9 Richard A "Pancho" Gonzalez, tennis star (US 1948-49), born in Los Angeles, California
- May 9 Pancho Gonzales, American tennis player (US Nat C'ships 1948-49), born in Los Angeles, California (d. 1995)
- May 16 Billy Martin, American baseball 2nd baseman and manager (NY Yankees, Oakland A's), born in Berekeley, California (d. 1989)
Dolph Schayes
May 19 Dolph Schayes, American basketball Hall of Famer (Syracuse Nationals/Philadelphia 76ers, 1948-63) and coach (76ers, 1963-66; Buffalo Braves, 1970-72)) and coach, born in NYC, New York (d. 2015)

Dolph Schayes