The Next Loop Endurance Series - Lake Carl Blackwell, OK

Embark on a unique trail running experience at The Next Loop Endurance Series at Lake Carl Blackwell, Stillwater, OK, on May 23, 2026. This isn't just a race; it's an opportunity to test your limits in a supportive, flexible format. Held in Lake Carl Blackwell Park, the event centers around a scenic 3.1-mile (5K) trail loop that takes runners through natural terrain, offering a mix of runnable lakeside views, wooded sections, dirt trails, and open grassy stretches. With gently rolling terrain and minimal technical sections, the course, primarily utilizing the Shredder's Gulch trail system, is approachable for new trail runners while still providing an engaging challenge for seasoned endurance athletes. Each loop presents approximately 110–150 feet of elevation gain and descent, accumulating into a significant endurance test over longer distances.

What truly sets The Next Loop Endurance Series apart is its innovative, hourly loop-based structure. You'll begin a new 5K lap at the top of every hour, allowing you to decide how far you want to go, one loop at a time. This format means you're never locked into a set distance; whether you aim for a single 5K, a 10K, a Half Marathon, a Marathon, or even the challenging 50K, every completed loop counts towards your official result. This flexible approach, championed by EverFurther Events, emphasizes personal growth and participation over strict cutoffs, ensuring no DNFs. Between loops, runners return to a centralized start/finish area that serves as a fully stocked aid station, providing essential hydration and basic nutrition, and offering easy access for personal crew support and gear changes.

Typical race day conditions in late May in Stillwater, OK, feature highs around 82°F and lows around 61°F, with a 16% chance of precipitation, offering a dynamic environment for your endurance efforts. The inclusive atmosphere and strategic challenge of managing hourly starts make this event perfect for anyone looking to push their boundaries in a controlled and encouraging setting. Get ready for a day of strategic running, community spirit, and the satisfaction of building your mileage, loop by loop, at Lake Carl Blackwell.