First post is 11 a.m. Saturday, with a new wrinkle to the betting menu. Santa Anita added a midday pick four on cards with at least 11 races. The opening-day menu includes three 50-cent pick fours: races 2-5, races 5-8, and races 8-11. Potential low-odds singles: Affable, r2; Sharp Samurai (second favorite), r7; Sharing, r9.