Defending champions Kenny Perry and Sean O'Hair shot an 8-under 64 in modified alternate-shot play Friday for a share of the first-round lead in the Franklin Templeton Shootout.
The teams of Matt Kuchar-Harris English and Charles Howell III-Justin Leonard also shot 64 on the Ritz Carlton Resort's Tiburon course. The 24 teams will play better ball Saturday and finish with a scramble Sunday.
After playing the front nine in 3 under, Perry and O'Hair birdied Nos. 13-16.
Howell and Leonard birdied the final three holes on the front nine and added birdies at Nos. 10, 12, 13, 17 and 18. Kuchar and English birdied Nos. 12-14 and eagled No. 17.
Retief Goosen and Fredik Jacobson shot 67, and Jason Dufner and Dustin Johnson matched Chris DiMarco and Billy Horschel at 68. Tournament host Greg Norman and Jonas Blixt had a 72.