Related Clues:

• Exactas or perfectas
• Makes wagers
• Unseen Guest "Place Your ___"
• Adds to the pool
• Santa Anita action
• Transactions at Belmont
• Over and under, e.g
• Parlays
• Croupiers oversee them
• Places at stake
• Sums at risk
• Pot growers?
• Gets into a pool
• Joins an office pool, perhaps
• Action in FanDuel and DraftKings