Related Clues:

• Toss in a chip
• Combo bet
• Gamblers place them
• Casino acts
• Aqueduct actions
• Use a parimutuel machine
• Track placement
• Try for a trifecta
• Trifecta, for one
• Bet on a one-two finish
• Lays odds
• Stack of chips, perhaps
• 'You ___!' ('O.K.!')
• Vegas verb
• A few bucks at Pimlico