Tom Jenkins holed out for eagle on the par-4 third hole and finished with a bogey-free 7-under 65 on Saturday to take a three-shot lead in the Boeing Classic.
The 64-year-old Jenkins is trying to become the oldest winner in Champions Tour history. Mike Fetchick was 63 when he won the 1985 Hilton Head Seniors Invitational.
Jenkins had a 9-under 135 total at TPC Snoqualmie Ridge. He won the last of his seven titles on the 50-and-over tour in 2006.
On the 439-yard third hole, Jenkins hit an 8-iron from 148 yards that bounced off the collar of the green and rolled into the cup. He followed with a birdie on No. 4 and added four more birdies.
Willie Wood, coming his first tour victory last week in New York in the Dick's Sporting Goods Open, was second after a 68. Defending champion Mark Calcavecchia, the first-round leader, had a 73 to finish at 6 under along with Mark O'Meara, 2005 champion David Eger, Mike Reid and Jay Don Blake. O'Meara had a 64, the best round of the day. Eger and Reid shot 68, and Blake had a 70.