Baseball Record
May 1 Barry Bonds is first MLB player to hit a homer into San Francisco Bay as Giants beat Mets, 10-3; hits 35 there during his SF career
- May 3 The sport of geocaching begins, with the first cache placed and the coordinates from a GPS posted on Usenet.
Kentucky Derby
May 6 126th Kentucky Derby: Kent Desormeaux aboard Fusaichi Pegasus wins in 2:01.12
- May 17 Turkish side Galatasaray defeat Arsenal 4–1 on penalties, becoming the first Turkish football team to win the UEFA Cup in Copenhagen
- May 20 125th Preakness: Jerry Bailey aboard Red Bullet wins in 1:56.00
- May 20 English FA Cup Final, Wembley Stadium, London (78,217): Chelsea beats Aston Villa, 1-0; Roberto Di Matteo scores 73' winner
- May 24 8th UEFA Champions League Final: Real Madrid beats Valencia 3-0 at Saint-Denis
Laureus Awards
May 25 Laureus World Sports Awards, Monte-Carlo Sporting, Monaco: Sportsman: Tiger Woods; Sportswoman: Marion Jones (rescinded); Team: Manchester United FC
- May 26 NHL Eastern Conference Final: New Jersey Devils beat Philadelphia Flyers, 4 games to 3
- May 27 NHL Western Conference Final: Dallas Stars beat Colorado Avalanche, 4 games to 3
- May 27 Super Rugby Final, Canberra: Crusaders claim their 3rd consecutive title with a 20-19 win over the ACT Brumbies; flyhalf Andrew Mehrtens kicks 5 penalties for the winners
- May 28 Indianapolis 500: reigning CART champion Juan Pablo Montoya leads for 167 laps to cruise to victory; first rookie winner since Graham Hill 1966
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions