
Dehradun, India · Sunday 4 October 2026
Sarmang Dehradun Marathon is a prestigious road running event held annually in Dehradun, Uttarakhand, India. The race features a full marathon, half marathon, 10 km, 5 km, and 2 km fun run, making it accessible to runners of all levels. The course is certified by World Athletics and is an associate member of AIMS, ensuring that it meets international standards for distance running.\n\nThis marathon is a must-do for those seeking a memorable experience amidst India's natural beauty. The event is
Adjusted Time
4:37:13
Time difference: +37.2 minutes compared to a flat, road, temperate course.
Sarmang Dehradun Marathon is a full marathon held in Dehradun, India, scheduled for Sunday 4 October 2026. The course is run on road surface with 757m of total elevation gain, reaching a maximum altitude of 888m above sea level. For registration and full race details, visit the official Sarmang Dehradun Marathon website.
This is a very challenging course with 757m of total elevation gain — significantly more than the average road marathon. The route ranges from 646m to 888m above sea level (242m range). Hill training is essential, and runners should expect a significantly slower time compared to a flat course.
Based on historical weather data for October, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 20°C and 30°C. Heat is one of the biggest performance factors in marathon running — research shows that for every degree above 15°C, marathon times slow by approximately 1-2%. Extra hydration and a conservative start are strongly recommended. There is a low chance of rain (5%), so dry conditions are likely.
Sarmang Dehradun Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Sarmang Dehradun 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 Sarmang Dehradun Marathon against other marathons to find the right race for your goals.