Related Clues:
- Assembly of track competitors
- Endurance race, for short
- Can't do it on your own at the races
- ___ and 15-Across (get-to-know-you gathering)
- Marathoner's practice
- What nonparallel lines do eventually
- Six-mile-plus run, briefly
- Half-marathoner's warm-up race
- Teem over by racetrack gathering
- Wrestling competition
- Swimming contest
- Deal with — encounter
- Where hammers are thrown
- Marathon prep run
- ". . . never the twain shall ___"