Merus Marathon & Ultra
Typically 48–73°F · low rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2026
54–86°F
dry
2025
63–93°F
dry
2024
51–85°F
dry
2023
48–82°F
dry
2022
37–77°F
dry
2021
35–54°F
dry
2020
31–56°F
dry
2019
55–69°F
rain
2018
57–91°F
dry
2017
56–73°F
rain
Best months to race in Texas →
About this race
Merus Adventure Park, located in the Palo Duro Canyon offers huge elevation gains throughout the land. The base elevation at the rim of the canyon is 3,412 feet above sea level. The lowest point on the floor of the canyon at MERUS Adventure is 2,500 feet. Most of the elevation gains range from 100 to 500 feet in drop, creating ample opportunities for a challenging race course. Millions of years of erosion have created incredible colors and a variety of surface materials. As you cover the miles, you’ll traverse sand, sandstone, red dirt, rock, stone, clay, and witness some of the most amazing views! Come to Merus Adventure Park and take in the views at the Merus Marathon!
Race Shirt Cutoff - March 26th
Course map
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