Related Clues:

• Track race
• What a lover's heart may do
• Cannonball along
• Amscray
• Word with human and rat
• Brisk pace
• Pull a sulky, perhaps
• Hambletonian gait
• See 66-Across
• Timed competition
• 100-yard dash, e.g.
• Run slowly
• Preakness, for one
• Derby, e.g
• 'A.S.A.P.!'