
Chester, United Kingdom · Sunday 18 May 2025
One of the UK’s most popular half marathons, the Chester Half Marathon is a historic and well-supported event that attracts thousands of runners each year. Starting in the heart of Chester, the course takes participants through the countryside of Cheshire, offering a mix of urban charm and rural beauty. The course is mostly flat with a few inclines, making it ideal for runners looking for a personal best. The enthusiastic crowds and first-class organization ensure a smooth and enjoyable race exp
Adjusted Time
1:43:60
Time difference: -1.0 minutes compared to a flat, road, temperate course.
Chester Half Marathon is a half marathon held in Chester, United Kingdom, scheduled for Sunday 18 May 2025. The course is run on road surface with 127m of total elevation gain, reaching a maximum altitude of 43m above sea level. For registration and full race details, visit the official Chester Half Marathon website.
With 127m of elevation gain, this is a moderately undulating course. The route ranges from 11m to 43m above sea level (32m 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 May, the expected race day conditions are as follows. Moderate temperatures between 10°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 (13%), so dry conditions are likely.
Chester Half 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 Chester Half 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 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 Chester Half Marathon against other half marathons to find the right race for your goals.
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