Barrier Island Ultra

Overview

The Barrier Island Ultra is scheduled for November 8, 2025, in Port Aransas, Texas, on Mustang Island. The course runs along the Gulf of Mexico and is described as entirely on sand. The event is part of the Texas Trail Running Eco Series - Eco Challenge.

Race details

Distances offered:

• 5k
• 10k
• 13.1mi (Half Marathon)
• 26.2mi (Marathon)
• 50k
• 50mi

The course is marked with in-ground flagging and directional signage. Organizers classify the route as "2 = Easy to Moderate" with little to no elevation gain and note hard-packed sand footing. Aid stations will be located every 3-5 miles on the out-and-back course and provide first aid supplies, electrolytes (Crazy Water), and a variety of snacks. This is a cupless race; runners should bring refillable water bottles for refills at aid stations. All finishers receive a custom medal; race shirts are guaranteed for registrations made by October 19, 2025. Awards are given to first-place male and female in each distance. Packet pickup is available the day before and on race morning at the Port A Beachlodge. Parking or beach/park entrance fees may apply and are not included in registration. Registration remains open until each race start unless the race is sold out. Visit the organization's website for the most recent information.