Related Clues:

• Throw your hat into the ring
• See 66-Across
• Timed competition
• 100-yard dash, e.g.
• Join the race
• Preakness, for one
• Derby, e.g
• 'The Amazing --'
• Word with foot and rat
• Political competition
• See print
• Hose flaw
• Move rapidly
• Series of performances
• Go fast