Chesson Hadley leads the way at the half-way stage of the Web.com Tour Championship in Florida after following a first round 65 with a second day 66.
The 26-year-old needed just 31 strokes to cover the opening nine holes of his second circuit and is on course to secure his card for next season's PGA Tour.
After 36 holes, Hadley holds a two-stroke advantage over Tour veteran Joe Durant.
Durant, 49, is a four-time winner on the PGA Tour, the last of these seven years ago, but will need a strong finish to regain his playing rights for next season.
Durant teed-off in the last event of the season 67th in the overall standings, needing to move into the top 50 to earn his card.
His strong start in Ponte Vedra has moved him up to 8th in the provisional standings but he will need to stay near the top of the leaderboard to regain his card.
Durant, who located 16 of the 18 greens in regulation in both rounds one and two, admitted: "For me, putting has always been a struggle.
"When I've gotten hot with a putter I've had a chance to win or I've won tournaments but they seem too few and far between.
"I still work on it and try to get better, that's all we can do."
Scotland's Russell Knox is tied-for-ninth - five strokes off the pace - after rounds of 67 and 69.
Knox, who began the week in 57th spot in the overall standings, is up to 26 in the provisional list with 36 holes still to play.
Elsewhere, Briton Greg Owen's chances of playing on the main PGA Tour next year look slim after missing the cut by a single shot following rounds of 72 and 69.
The 40-year-old from Mansfield has slipped from 31st in the ranking to a provisional 54.
Owen will need some of the players above him in the list to perform poorly over the weekend, if he is to move back into the top 50 by Sunday evening.