
London, United Kingdom · Tuesday 8 September 2026
The Richmond Park Half Marathon offers a unique running experience within the tranquil setting of one of London’s largest and most beautiful parks. Held in September, the race lets participants enjoy the stunning natural beauty of Richmond Park, with its ancient woodlands, rolling meadows, and herds of deer roaming freely.\n\nThe flat, fast course is ideal for setting a personal best, though the natural terrain with occasional undulating paths adds to the challenge. The course takes runners on a
Adjusted Time
2:05:43
Time difference: +20.7 minutes compared to a flat, road, temperate course.
Richmond Park Half Marathon - September is a half marathon held in London, United Kingdom, scheduled for Tuesday 8 September 2026. The course is run on mixed surface with 209m of total elevation gain, reaching a maximum altitude of 50m above sea level. For registration and full race details, visit the official Richmond Park Half Marathon - September website.
With 209m of elevation gain, this is a moderately undulating course. The route ranges from 13m to 50m above sea level (37m 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 September, the expected race day conditions are as follows. Moderate temperatures between 13°C and 22°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 low chance of rain (0%), so dry conditions are likely.
Richmond Park Half Marathon - September features a mixed-surface course, combining sections of road with unpaved terrain such as gravel paths, parkland, or boardwalks. Mixed courses add variety but also introduce some unpredictability in footing. Runners should expect slightly slower times compared to a pure road marathon, and road-trail hybrid shoes may be the best footwear option.
Our difficulty rating for Richmond Park Half Marathon - September 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 half 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 Richmond Park Half Marathon - September against other half marathons to find the right race for your goals.
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