Former PGA Tour mainstay Kelly Gibson is two shots back at 13-under-par. Gibson also shot 64 in the third round; as did Ryuji Imada, who is tied for fourth place with Darron Stiles (65) at 12-under.
Campbell is in his first full season on the Buy.Com Tour. The 26-year-old Texan was the leading money winner on the Hooters Tour in 1998 and 2000. Last year, he captured eight of the first 16 tournaments on the mini tour, and finished the season more than $110,000 ahead of his nearest competitor on the money list.
Saturday, Campbell and Henry each made their way around the Stonehenge Golf & Country Club without a bogey. Campbell carded five birdies and an eagle at the par-5 12th, while Henry notched seven birdies.
Overnight leader Tjaart van der Walt is now in a tie for ninth place following an even-par 71. He stands at 10-under-par, five shots off the pace.
Full-field scores from the Buy.Com Richmond Open