
From the Organizer
The Sgt. Bret D. Isenhower Memorial 5K is an annual event held in Seminole, Oklahoma, to honor the memory of Sergeant Bret D. Isenhower, who was killed in action in Afghanistan on September 9, 2011. The event features a 5K run and a 1-mile fun run, with all proceeds supporting the Sgt. Bret D. Isenhower Memorial Scholarship established at East Central University. We hope you will join us on May 16, 2026!
Distances & Pricing
Race Location
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
Trail of Honor Memorial Run
Medal Madness 5K, & 10K at Owasso, OK (25)
Eagle 5K, 10K, & 13.1M at Oklahoma City, OK (30)
Lake Vian 5K Trail Run
Frequently Asked Questions (FAQs)
Sgt Bret D. Isenhower Memorial 5K
May 16, 2026