Related Clues:

• Casino acts
• Aqueduct actions
• Use a parimutuel machine
• Track placement
• Try for a trifecta
• Trifecta, for one
• Lays odds
• Stack of chips, perhaps
• 'You ___!' ('O.K.!')
• Put a buck on black, say
• Vegas verb
• A few bucks at Pimlico
• They may be in the pool
• "Wanna ___?"
• It might be a raise