Apologynotaccepted (2) is the lone scratch from the Grade 3, $100,000 Arlington Matron, race 7 on today's solid card (ON yielding turf), but that's a key scratch. It leaves Daddy's Boo (7) the lone speed in this nine-furlong Polytrack race for older fillies and mares, and it moves jockey Jose Valdivia Jr., who had a call on Apologynotaccepted, back on to Daddy's Boo, a horse he regularly rides. It's relatively cool and there is rain in the area, so be cognizant that today's grass races could still wind up on the main track.