Related Clues:

• Nascar circuits
• Some PC sites
• Passes on the track
• Cat hangouts
• Oval circuits
• Swim-meet units
• Toddler perches
• Indy 500 circuits
• Pool lengths
• Runner's circuits
• Health club workout
• Miler's quartet, maybe
• Swimmers' distances
• Swimmers' units
• The 200 of the Indy 500