Casper Marathon
Casper, United States · Sunday 7 June 2026
Casper sits in central Wyoming, a high desert community where the North Platte River runs through sagebrush plains backed by distant mountains. The setting is quintessentially western, with wide open spaces and clear skies that make for excellent running conditions in early summer. The landscape around Casper is spacious and relatively undeveloped, offering the kind of wide-open feeling that characterizes much of Wyoming. This is genuine high elevation terrain, sitting well over 5,000 feet above sea level, which means runners training from lower elevations should arrive with time to acclimatize. The course itself is a trail marathon that rolls gently across the high plains, with minimal elevation change despite the altitude. You'll encounter modest climbs and descents throughout rather than any sustained hills, making the 1,554 to 1,629 meter elevation range feel forgiving in terms of profile. Trail running here means you're dealing with natural surfaces that can vary in consistency depending on conditions, though the terrain stays relatively smooth and runnable for a trail event. The landscape is predominantly open country with sagebrush and grassland, so you'll have exposure to the elements and sun. Wind can be a factor on the plains, and the aridity of the high desert means heat management becomes more relevant even in June. This is the kind of course that rewards a steady effort rather than dramatic pace changes.
Difficulty Calculator
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Adjusted Time
4:35:07
Time difference: +35.1 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain118m
Elevation High1629m
Elevation Low1554m
Casper Marathon 2026 Course Analysis
Casper Marathon is a full marathon held in Casper, United States, scheduled for Sunday 7 June 2026. The course is run on trail surface with 118m of total elevation gain, reaching a maximum altitude of 1629m above sea level. For registration and full race details, visit the official Casper Marathon website.
Elevation Profile
With 118m of elevation gain, this is a moderately undulating course. The route ranges from 1554m to 1629m above sea level (75m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.
Surface Type: Trail
Casper Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are inherently slower than road courses due to uneven footing, technical sections, and often steeper gradients. Trail-specific shoes with good grip are recommended, and runners should expect a finish time 10-20% slower than their equivalent road marathon time.
How Difficult Is Casper Marathon?
Our difficulty rating for Casper Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Casper Marathon against other marathons to find the right race for your goals.
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