Alvarado won the sixth race with Isabelqa ($5.80), the 9-to-5 choice in a field of six 3-year-old fillies. Trained by Jeff Bonde, Isabelqa took the one-mile event by three lengths over Come On Mama.
Bonde saddled two winners Sunday as he also captured the ninth race with Truckees Rose ($10.00). Inoel Beato rode Truckees Rose.
Golden Gate Fields will continue to race through the holidays with an eight-race program on Monday. Post time is 12:45 p.m.