Stewart Cink and son Connor birdied three of the last five holes Saturday for an 11-under 61 and a one-stroke lead in the Father/Son Challenge.
Stewart Cink made an 8-foot birdie putt on the final at Grande Lakes in the scramble event.
Steve and Sam Elkington were second.
Jack and Gary Nicklaus shot 63. The 73-year-old Jack Nickaus made a 10-foot birdie putt at No. 18.
Defending champions Davis Love III and son Dru were another shot back after a 64, tied with Vijay and Qass Singh, Hale and Steve Irwin and David Duval and stepson Dean Karavites.