Related Clues:

• Drag and three-legged
• Marathons, e.g
• Fast races
• Makeup of humanity
• Lots of people running competitons?
• 'A Day at the ___' (Marx Brothers film)
• Ascot action
• Derbies, e.g
• Zips by
• Pair in a Morse M
• Takes off in a hurry
• Ethnic groups
• Scurries (off)
• Events at Epsom or Ascot?
• Brickyard events