"A Horse Of Another Color"
Penguin returns to the library and steals a rare folio of parasols, then sells it for $10,000. Lola gets all other horses removed from the race, so the diguised Parasol has no chance of losing. To put a stop to their plan, Bruce enters his own thoroughbred, Waynebo, to be ridden by Batgirl.
When Batgirl confronts Penguin, he calls for his men, and tells them to "ride her like a filly!"