Gow, an Australian, stands at 13-under-par 203 midway through the 108-hole gauntlet that determines each player's fate for next season. He had an eagle, six birdies and a bogey at the Stadium Course at PGA West, one of two host courses.
Second-round leader Rich Barcelo played with Gow and had a 2-under 70 -- falling two shots off the pace after leading Gow by three shots overnight. He shares second place with Cameron Beckman (66) at 11-under 205.
George McNeill shot a 5-under 67 and is alone in fourth place at 10-under 206. Bob Heintz, Tom Johnson and John Mallinger also had 67s and are a shot further back at 207.
Any player in the top 30 -- including ties -- after Monday's final round will receive a PGA TOUR card for next season. The following 50 will earn full privileges on the Nationwide Tour.
With nine strokes separating himself from the 31st position, Gow is in excellent position to earn back the tour card he lost following the 2005 season.
Even if there are 54 holes remaining.
On Friday, Gow began his round on the back nine and made birdies at 10, 12 and 15 before handing back a shot with his only bogey at the par-4 18th. He retrieved that shot right away with a birdie at No. 1, then went on to play his final eight holes at 4 under.
Gow made birdie at the fourth and sixth, the made one of the few eagles of the tournament at the par-5 seventh.
Barcelo was done in Friday by a pair of early bogeys -- at the 13th and 15th after starting on the back with Gow -- and one late bogey, at the par-3 eighth. He added five birdies to remain near the top.
Beckman had an eagle, five birdies and a bogey in the third round.
Michael Boyd had the round of the day with a 64 that moved him from 33rd place overnight into a tie for eighth place at 8-under 208. He was joined there by Matt Hendrix (67), Ryan Armour (67), Brian Bateman (69), Mark Wilson (65) and Robert Garrigus (65).
The Jack Nicklaus Tournament Course is also hosting players, who are rotating among the two courses through all six rounds.