Garcia finished his 64 on Sunday morning and Riley completed his 66 to remain atop the leaderboard through 54 holes. Bill Haas (66) was two strokes back, and Brandt Snedeker (65), Justin Rose (65), Michael Allen (65), Kevin Stadler (66) and Steve Marino were at 198.
Garcia and Riley also shared the clubhouse lead at 13 under Saturday night when play was halted due to darkness with all but 24 players still on the course.
The event seems to have gotten back on track after three weather delays in three days combined to stop play for roughly 9 1/2 hours. The final round was to start later Sunday morning.