Nairobi, Kenya · Sunday 26 October 2025
Standard Chartered Nairobi Marathon, held on October 26, 2025, in Nairobi, Kenya, is a prestigious event that attracts thousands of participants from around the world. The race takes place along the Southern Bypass, offering a challenging yet rewarding experience for runners. The event features multiple distances, including a full marathon, half marathon, 10K, and family fun run, making it accessible to runners of all levels.\n\nThe marathon is renowned for its fast course and has become a signi
Adjusted Time
4:13:33
Time difference: +13.6 minutes compared to a flat, road, temperate course.
Nairobi Marathon is a full marathon held in Nairobi, Kenya, scheduled for Sunday 26 October 2025. The course is run on road surface with 298m of total elevation gain, reaching a maximum altitude of 1873m above sea level. For registration and full race details, visit the official Nairobi Marathon website.
With 298m of elevation gain, this is a moderately undulating course. The route ranges from 1643m to 1873m above sea level (230m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.
Based on historical weather data for October, the expected race day conditions are as follows. Moderate temperatures between 16°C and 25°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance over the full distance. There is a moderate chance of rain (25%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Nairobi 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 Nairobi 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 Nairobi Marathon against other marathons to find the right race for your goals.