" Race courses are usually held on the streets of major cities and towns but they could be on any sealed road. Most road races are either 5 km (3 . 1 miles), 10 km (6. 2 miles), half-marathon (21. 097 km, 13. 1 miles), or marathon (42. 195 km, 26. Running Stealth Time2 miles), but non-standard distances are also acceptable. The "Round the Bays" run in Auckland, New Zealand is 8. "

"46 miles); "City to Surf" in Sydney, Australia is 14 km, Honolulu's "Great Aloha Run" is 8. 15 miles (13. 12 km), and the "Charleston Distance Run" in Charleston, West Virginia is 15 miles (24. 14 km). Any running that covers a distance further than a marathon is called ultrarunning; the event is an ultramarathon. Such events can be measured in distance (for example, 100 kilometers) or by time (whoever has run the farthest after 24 hours). Examples include the London to Brighton run in England which is just over 54 miles (87. Day Light Running Time085 km), the Comrades Marathon run between Pietermaritzburg and Durban in South Africa which is about 89 km (55. 3 miles), and the Badwater Ultramarathon between Death Valley and Mount Whitney in the United States which is 135 miles (215 km). "