Tiger Woods shot a seven-under-par 64 to finish the first round of the Deutsche Bank Championship tied for third place.
Woods, who started on the back nine and at one point had six consecutive birdies, grabbed an early share of the lead at TPC Boston.
But the birdies, and some eagles, kept coming until South Korea's Seung-Yul Noh finished with back-to-back birdies for a nine-under 62. He leads American Chris Kirk, who had an eagle on No. 18, by one stroke.
Woods, who shot his lowest opening round of the year on the heels of closing last week's Barclays event with his worst score of the season (76), had his only bogey of the day on his final hole to leave him in a three-way tie for third with Americans Jeff Overton and Ryan Moore.