Related Clues:
- Last turn on French river requires ability to last
- Stoical coping with hardship
- Patient toleration
- Funny looking nude ran to Clare with such perseverance
- Continuing power of the Creed, a nun found out
- Run and run in end of the second half of race, showing stamina
- Stoical attitude which Shackleton took to the Antarctic
- Crushed ship's ability to survive
- Staying power of Parisian in French river
- It is tested in marathon events
- Exhausting test
- Ultimate test
- Test provided in Athens by the triathlon
- It is needed in stamina events
- Test provided by the long races