Across The Years

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Yiannis Kouros at Across The Years 2005/06.

The Across the Years race is one of a handful of multiday events taking place in the United States and provides a rare opportunity to run in shorter races including the only annual 72 hour race in the world and either of two 48 hour races.

Update 2019/20

This years event has continued to expand since the success of the 6 day with the addition of several new events including a Last Man Standing and the first ATY 10 day race.

Race Name

Across The Years usually abbreviated to ATY.


As of 2010 the new hosts of Across The Years are Aravaipa Running


The course at Camelback Ranch is a 1.05 mile loop (exact distance pending certification). It consists of primarily gravel paths (0.90 mile) with short sections of asphalt (0.12 mile) and concrete (0.03 mile). The path averages 10-20 feet wide, with a short section that narrows to about 6 feet.


Founded in 1983 by Harold Sieglaf who continues to run in the event, the event began with 6,12,24 hour races with the 6 and 12 hour races susequently dropped. The race has been held at various locations in and around Phoenix and has been hosted by the Arizona Road Racers on a number of occasions. The race has grown in popularity over the last few years to the extent that in 2005 the race was filled to capacity early and in 2006 was filled to capacity without being open to applications from the general community. In 2011 the directorship passed to Jamil and Nick Coury and a new venue was found at Camelback Ranch – Glendale, and a 200 runner per day limit was set which meant that the lottery system could be discarded

Course Records

  • Yiannis Kouros 323 miles

Race reports


Current home of the ATY is Camelback Ranch - about forty minutes drive from Sky Harbor International Airport, Phoenix, Arizona.


Address: 10710 West Camelback Rd. Phoenix, AZ 85037 Email: [email protected]


Marathons, Ultramarathons and Multiday Events