David Toms opened with a 4-under 67 to take a one-shot lead over Ernie Els in the PGA Grand Slam of Golf in Southampton, Bermuda.
This is the first day of the four-man event for major champions, and alternates were the stars Tuesday at Port Royal Golf Course.
Toms is filling in for British Open champion Louis Oosthuizen, and Els joined the field when Masters champion Phil Mickelson chose not to play.
U.S. Open champion Graeme McDowell had a 72. PGA champion Martin Kaymer opened with a 74.