2003 Confederations Cup – host nation France wins a tournament marred by tragedy after Cameroon player Marc-Vivien Foé collapsed and died during a semifinal match.
August 10: On a rainswept Arena Joondalup, East Perth score only 0.9 (9) against deadly rivals West Perth. It is the first goalless score in WAFL/WANFL/Westar Rules football since West Perth themselves kicked 0.10 (10) against soon-to-be-defunct Midland Junction in May 1916.[1]
June 11 – Houston Astro pitcher Roy Oswalt started a no-hitter against the New York Yankees on June 11. Oswalt left after one inning, and five more Astros continued to no-hit the Yankees. Peter Munro pitched 2? innings, Kirk Saarloos pitched 1? innings, Brad Lidge pitched two innings, Octavio Dotel pitched one inning in which he recorded four strikeouts and Billy Wagner pitched a perfect ninth to close out a six-pitcher no-hitter that resulted in 13 strikeouts and an 8-0 victory over the Yankees.
July 29 – Bill Mueller becomes the only player in major league history to hit two grand slams in a single game from opposite sides of the plate. He in fact hit three home runs in that game, and the two grand slams were in consecutive at-bats.
WNBA Finals – Detroit Shock win 2 games to 1 over the Los Angeles Sparks, winning the franchise's first title, and marking the first time an Eastern conference team is WNBA world champions.
September 13 – Shane Mosley conquers the WBA and WBC world Jr. Middleweight titles with a 12-round unanimous decision over Oscar De La Hoya in rematch of their 2000 bout
Masters Tournament – Mike Weir becomes the first Canadian and the first left-handed golfer to win The Masters. He defeats Len Mattiace on the first playoff hole.
U.S. Open – Jim Furyk. Tournament takes place at Olympia Fields, and Furyk wins his first major by 3 shots.
British Open – Ben Curtis, an outsider, wins by a single shot from Thomas Björn and Vijay Singh at Royal St. George's.
Present record holder for the highest attendance of a strictly MMA event. Semifinals and final to Pride GP 2003 middleweight tournament. Wanderlei Silva becomes the Pride 2003 middleweight Grand Prix champion.
