JB Holmes holds a one-shot lead from Hideki Matsuyama after the opening round of the Hero World Challenge in the Bahamas, with Dustin Johnson sitting third as Tiger Woods made a modest return.
Holmes did not get off to the best of starts as he dropped a shot on the first hole, but he reached the turn at three under after posting gains on the third, sixth, eighth and ninth.
The 34-year-old's hot streak continued at the start of the back nine as he followed up a birdie on the 10th with an eagle on the par-five 11th.
Holmes sunk a lengthy putt to move to six under and take a lead that he would not relinquish, carding an eight-under 64 courtesy of a further two birdies.
The American benefitted from a double-bogey by Matsuyama, winner of the WGC-HSBC Champions in October, at the par-three eighth. The Japanese produced an eagle at the 15th, but was unable to overhaul Holmes.
U.S. Open winner Johnson paid the price for dropped shots on the second and 10th holes, but a fantastic approach and difficult putt at the last assured him outright ownership of third position.
Open champion Henrik Stenson, Matt Kuchar and Louis Oosthuizen sit just three shots adrift of leader Holmes in a three-way tie for fourth, while Rickie Fowler and Jordan Spieth carded four-under 68s to hold joint-seventh.
Louis' lofty lob means no longer a problem. https://t.co/EIFLUpmicf-- PGA TOUR (@PGATOUR) December 1, 2016
There were mixed fortunes for former world number one and 14-time major winner Woods as he marked his comeback from over 15 months out due to injury.
After gains on four of the first eight holes, Woods dropped six shots on the remaining 10, including double-bogeys at the 16th and 18th, to card a one-over 73 and sit 17th on the leaderboard.