Rookie duo Scott Langley and Russell Henley share the lead at the Sony Open in Hawaii with the pair on 17 under par heading into the final round.
After starting the day two shots behind, Langley managed to draw level after making his fifth birdie of the day on the par four tenth before pulling ahead on 13.
A bogey on the 14th brought Langley back level, before a birdie on the next hole once again gave Langley the lead.
In contrast, his 23-year-old rival had a unremarkable round with three birdies including a four on the par five last to become the first player to reach 17 under par after 54 holes, while he also maintained his record of not dropping a shot in the tournament.
Langley could have moved to 18 under but could not putt his birdie attempt from 11 feet on the 18th and had to settle for a share of the honours.
South African Tim Clark is three back as he went four under in his third round, while Charles Howell III and rookie Scott Gardiner are a further shot back.
It's Gardiner's first tour start and the 36-year-old Australian, who is the oldest rookie on the circuit, was more than pleased with his performance over the first three days.
"It's amazing what happens when expectations are not there," he said. "I only hit balls once in the two weeks before the tournament because we had snow at Christmas and a couple days after."
He played 195 Web.com Tour events for the last eight years, winning once before graduating, thanks to a 15th-place finish on last year's money list with 234,000.
Sunday, he can make that with a top-five finish.
"I've been trying to remember some of the times I've played well on the Web.com Tour and that's helped me a little," he added. "All the years on the Web.com Tour have been fantastic so this is not as unfamiliar as it might be for other rookies."