(Trainer John Shirreffs / Photo Courtesy of Santa Anita) From the Santa Anita Media Team; John Shirreffs is aiming for victory at Santa Anita on Saturday. The former Marine is focused in a bid to capture the day’s two marquee events, the Grade I Runhappy Santa Anita Derby and the Grade I Hollywood Gold Cup. In all, seven stakes offering more than $1.3 million in purse money will be presented. Honor A.P. will attempt to hand undefeated favorite Authentic his first loss in the Derby, a San Felipe rematch to be decided at a mile and an eighth, while Midcourt will bid to make amends for his third-place finish as the odds-on favorite in the Grade I Santa Anita Handicap March 7, when he faces five foes in the mile and a quarter Gold Cup. The Runhappy Santa Anita Derby and the Hollywood Gold Cup are duly complemented Saturday by