Events in Sport
- May 7 131st Kentucky Derby: Mike Smith aboard Giacomo wins in 2:02.75
Event of Interest
May 15 Laureus World Sports Awards, Casino Estoril, Portugal: Sportsman: Roger Federer; Sportswoman: Kelly Holmes; Team: Greece Men's National Football team
Roger Federer
- May 21 130th Preakness: Jeremy Rose aboard Afleet Alex wins in 1:55.04
- May 21 English FA Cup Final, Millennium Stadium, Cardiff (71,876): Arsenal beats Manchester United, 5-4 on penalties after 0 – 0 (a.e.t.); Gunners' 10th title
- May 25 13th UEFA Champions League Final: Liverpool beats Milan (3-3, 3-2 on penalties)
- May 28 Super Rugby Final, Christchurch: Canterbury Crusaders claim their 5th title with a 35-25 win over the NSW Waratahs; Dan Carter lands 3 conversions & 2 penalties for the winners
- May 29 Indianapolis 500: Dan Wheldon wins in 3:10:21.0769 (253.637 km/h)
- May 29 Senior PGA Championship Men’s Golf, Laurel Valley GC: Mike Reid wins his first of 2 Champions Tour major titles with a birdie on the first playoff hole against Jerry Pate and Dana Quigley
Deaths in Sport
- May 5 Ted Atkinson, American jockey (US Champion 1944, 46), dies of a stroke at 88
- May 7 Tristan Egolf, American writer (b. 1971)
- May 7 Otilino Tenorio, Ecuadorian soccer forward (13 caps; Emelec), dies in a car accident at 25
- May 8 Nicolás Vuyovich, Argentine racing driver, dies at 23
- May 26 Chico Carrasquel, Venezuelan baseball player (b. 1928)
- May 30 Fazal Mahmood, Pakistan cricket fast bowler (34 Tests, 139 wickets), dies at 78