American Rajeev Ram, Italian Flavio Cipolla and Chile's Paul Capdeville were first-round winners in the Farmers Classic on Monday.
Ram upset eighth-seeded Brian Baker 7-6 (7-3), 7-5. Ram saved 5-of-9 break points.
Capdeville downed Igor Kunitsyn of Russia 6-4, 7-6 (7-5), while Cipolla took out American Jack Sock 6-3, 6-1.
Ernests Gulbis of Latvia defeated American Mardy Fish in last year's Farmers Classic final.