August 12 – Evander Holyfield defeats John Ruiz by decision in 12 rounds to regain the WBA's world Heavyweight title, becoming the first boxer to win the world Heavyweight title four times.
The Ring Magazine named Felix Trinidad the Fighter of the Year 2000. Eric Morales Won a 12 Round Points Victory over Marco Antonio Barrera, for the Unified WBC and WBO 122 Pound Titles, In The Ring's Fight of The Year 2000.
Courtney Walsh (West Indies) takes 34 wickets in a test series against England at an average of 12.82 runs per wicket. He misses the record for most wickets by a West Indian bowler in a test series held by Malcolm Marshall by 1 wicket.
UEFA Cup: Galatasaray won 4-1 on penalties, in the final against Arsenal, after a 0-0 draw at the end of the match. This was the very first European title won by a Turkish team.
June 18 - U.S. Open - Tiger Woods wins by 15 shots, a record for all majors, with a U.S. Open to-par record score of -12.
July 23 - British Open - Tiger Woods becomes the fifth golfer in history to achieve the modern "career grand slam," and sets the to-par record for all majors (-19).
August 20 - PGA Championship - Tiger Woods becomes the first golfer since Ben Hogan in 1953 to win three majors in a calendar year. He ties the to-par record for the PGA (-18) with Bob May, and wins in a playoff.
February 12 – In Paris, France, US-swimmer Jenny Thompson betters her own world record in the women's 100 m butterfly (short course), from 56:90 to 56:80.
March 18 – Jenny Thompson once again betters her own world record in the women's 100 m butterfly (short course), this time in Athens, Greece, from 56:80 to 56:56.