The Next Loop Endurance Series | Pinnacle Mountain November 7, 2026 | Pinnacle Mountain State Park | Roland, Arkansas The Next Loop Endurance Series returns to Pinnacle Mountain with two ways to take on the trail. The Next Loop Hourly Challenge gives you up to 10 hours to complete approximately 5K every hour, on the hour. Run one loop or all ten. No DNF—every completed loop counts. Ready to go farther? The Next 50K/50M/100K/100M Challenge is a continuous endurance race. Choose your distance and keep moving toward your finish. Whether you’re exploring trail and ultra running for the first time or chasing your next big distance, there’s a challenge for you at Pinnacle Mountain. Choose your challenge. Find your limits. Then push beyond them. Your Endurance. No Limits. One More Loop.See All Event Posts