Mike Weir came within one stroke of matching the best round ever in any of golf’s major championships when he shot 64 in the first round of the U.S. Open on Friday.

There have been four 63s in the 108 U.S. Opens, the last by Vijay Singh in the second round at Olympia Fields in 2003. Jack Nicklaus and Tom Weiskopf both shot 63 in the opening round at Baltusrol in 1980. Those three rounds, like Weir’s, were shot on courses that played to a par of 70.