Related Clues:

• They're placed at tracks
• Makes things interesting, in a way
• Bookie's business
• Track actions
• Superfectas, e.g.
• Takes the odds
• Red and black, perhaps
• Casino acts
• Aqueduct actions
• Lays odds
• They may be in the pool
• Red and black, in Reno
• All of them may be off
• Calls and raises
• Racetrack transactions