The XTERRA Tennessee Trail Series moves to Knoxville, Tennessee to bring one of the toughest and most exciting trail runs on the calendar. Only half marathon participants earn series points. Only two miles from downtown, Knoxville’s Urban Wilderness presents a unique urban playground for mountain bikers and trail runners alike. This trail run includes two distance options: 13.1 mile or 4.6 mile runs. Winding through the Urban Wilderness, participants will encounter plenty of rocks, roots, and climbing to test their grit. XTERRA Knoxville will take participants through five parks, featuring the old quarries and hills of East Tennessee with a perfect balance of neighborhood backyard feel.