The 15th annual XTERRA Oak Mountain off-road triathlons and trail runs return to Oak Mountain State Park in Shelby County, Alabama on the weekend of May 23-24. The main event combines a 1.5km swim, 34km mountain bike and 9.5km trail run. For amateurs, there will be 51 spots into the XTERRA World Championship to be held November 08 in Maui up-for-grabs, and for elites, $15,000 USD in prize money and points in the XTERRA America Tour. XTERRA will also offer a shorter distance Sprint race – 750-meter for the swim, 17.1km mountain bike and a 4.5km trail run, and an even shorter distance Xticer race which mixes a fun 200-meter swim with a 9.5km mountain bike and 2km trail run.