UltraCentric, a multi-day event comprised of an ultramarathon, and 24 and 48-hour races, has a $12,000 prize purse.
This multi-day event comprises ultramarathon, 24-hour race and a 48-hour race. The entire $12,000 prize purse was reserved and earmarked only for Americans who qualify for and participate in the 2007 World 24-Hour as a member of the U.S. National Team in that race. 
