The 2003 Masters Tournament was the 67th Masters Tournament, held April 11–13 at Augusta National Golf Club in Augusta, Georgia. Mike Weir won his only major title in a one-hole playoff over Len Mattiace. He was the first Canadian to win a major, and also the first left-handed player to win the Masters.^[1][2] He is also the only Canadian to win the tournament.^[3]

The start of the first round was delayed until early Friday morning due to successive days of heavy rain; the second round was started on Friday afternoon and completed on Saturday morning