- May 7 137th Kentucky Derby: John Velazquez aboard Animal Kingdom wins in 2:02.04
Sports History
May 8 The Tradition Senior Men's Golf, Shoal Creek G&CC: Tom Lehman wins second of 3 Champions Tour majors with par on 2nd playoff hole against Australian Peter Senior
- May 14 English FA Cup Final, Wembley Stadium, London (88,643): Manchester City beats Stoke City, 1-0; Yaya Touré scores 74' winner; Citizens' 5th title
PGA Players Championship
May 15 PGA Players Championship, TPC at Sawgrass: K. J. Choi of South Korea defeats David Toms on the first hole of a sudden-death playoff to win $1.71 million winner's cheque
- May 21 136th Preakness: Jesús Castañón aboard Shackleford wins in 1:56.47
- May 24 NHL Western Conference Finals: Vancouver Canucks beat San Jose Sharks, 4 games to 1
- May 27 NHL Eastern Conference Finals: Boston Bruins beat Tampa Bay Lightning, 4 games to 3
- May 28 IPL Cricket Final, M. A. Chidambaram Stadium, Chennai: Chennai Super Kings beat Royal Challengers Bangalore by 58 runs; Murali Vijay 95 (52), Ravichandran Ashwin 3/16
- May 28 UEFA Champions League Final, London: FC Barcelona beats Manchester United, 3-1; 4th title for Barça
Indy 500
May 29 Indianapolis 500: 2005 champion Dan Wheldon of England wins his 2nd Indy 500; 4 months later he is killed in a race accident in Las Vegas
Senior PGA Championship
May 29 Senior PGA Championship, Valhalla GC: Tom Watson wins his 6th and final Champions Tour major title with a birdie on the first playoff hole against David Eger