Lenzini, who a week earlier won back-to-back races with horses that were the largest price on the tote board, won Friday's first race with 17-to-1 shot Topper's Smiling ($36.80) and the fifth with 20-to-1 shot Gorgeous Gibson ($43.00).
Lenzini, who has five wins at the fall meeting, was one of three trainers to saddle a pair of winners Friday.
Steve Sherman, third in the standings with nine wins, took the third race with Sir Wiggley ($6.80) and the sixth with Flier Money ($5.80).
Golden Gate Fields will present a nine-race program Saturday and fans attending the track will receive a free GGF baseball cap. Post time is 12:45 p.m.