Stennis Space Center Marathon

The Stennis Space Center Marathon runs on Saturday, November 28, 2026, inside the Stennis Space Center in Mississippi, and all three races start at 8:00am. Runners follow paved roads around the perimeter of the Space Center, through wooded areas where wildlife sightings are frequent. The marathon turns around twice and repeats part of the course. The organizers call the course flat, fast and PR friendly, with usual temperatures in the upper 50s at the start and the low 70s by the finish. All three courses are certified, the event is sanctioned by the RRCA and USATF, and the marathon is a Boston Marathon qualifier. The time limit is 7 hours, runners must be 18 or older, and walkers are not allowed in the marathon. Entry is $50 through November 22 and $55 from November 23 to 27; there is no day-of-race registration and refunds are not allowed. Because the course is inside a federal facility, every adult needs a Real ID or passport at the security gate, and drivers need proof of auto insurance. A half marathon and a 5K start at the same time.