Tonbridge Half Marathon
Tonbridge, United Kingdom · Monday 5 October 2026
The Tonbridge Half Marathon is set in the historic town of Tonbridge, located in Kent, England. The race takes runners through rural countryside, along scenic wooded trails, and past farmlands in the heart of the Weald. The course is relatively flat, with a few gentle hills, making it suitable for runners of all levels. Participants will enjoy views of Tonbridge Castle and the surrounding villages while experiencing the tranquil beauty of the English countryside.
Difficulty Calculator
h
:m
:s
Adjusted Time
1:45:58
Time difference: +1.0 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain123m
Elevation High59m
Elevation Low23m
Weather Forecast
High22°C
Low10°C
Chance of Rain0%
How hard is Tonbridge Half Marathon?
Moderateharder than 43% of half marathons
Flattest / easiestHardest
On our difficulty model, Tonbridge Half Marathon plays about 2 minutes slower than an average road half marathon for a 1:30 runner. It ranks #256 hardest of 450 half marathons we analyse, and #54 of 89 in United Kingdom. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Tonbridge Half Marathon?
Estimated finish times on this course versus the same effort on an average road half marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Tonbridge Half Marathon | Difference |
|---|---|---|
| 1:30:00 | 1:30:21 | +00:21 |
| 1:45:00 | 1:45:58 | +00:58 |
| 2:00:00 | 2:01:38 | +01:38 |
| 2:15:00 | 2:17:20 | +02:20 |
| 2:30:00 | 2:33:05 | +03:05 |
| 2:45:00 | 2:48:53 | +03:53 |
| 3:00:00 | 3:04:42 | +04:42 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Tonbridge Half Marathon 2026 Course Analysis
Tonbridge Half Marathon is a half marathon held in Tonbridge, United Kingdom. It is scheduled for Monday 5 October 2026. The course is run on road surface with 123m of total climbing, with its high point near 59m above sea level. For registration and full race details, visit the official Tonbridge Half Marathon website.
Elevation Profile
With 123m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for October, 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 on race day. There is a low chance of rain (0%), so dry conditions are likely.
Surface Type: Road
Tonbridge Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Tonbridge Half Marathon against other half marathons to find the right race for your goals.
Half marathons of similar difficulty
If Tonbridge Half Marathon fits your goal, these courses play out about the same on our difficulty model.
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