The average half marathon time in the UK is 2:02:43 across all runners, according to RunRepeat's analysis of millions of race results. Men average around 1:55:26 and women around 2:11:57. But an average hides a lot. Your sex, age, training history and the course you pick all move the number. This guide gives you the real benchmarks, what counts as a good time at your level, and how to work out a target you can actually hit.
What is the average half marathon time in the UK?
The average half marathon finish time in the UK is 2:02:43 across all genders, which works out to roughly 9:22 per mile or 5:49 per kilometre over the full 13.1 miles (21.0975 km). Split by sex, men finish in about 1:55:26 (8:49 per mile) and women in about 2:11:57 (10:04 per mile). Those figures come from RunRepeat's study of more than 107 million race results worldwide, the largest dataset of its kind. Remember that race-day averages are skewed by who turns up: half marathons attract a mix of seasoned club runners and first-timers walking the last few miles, so the median runner sits a little either side of two hours. If you cross the line under 2:00, you are already ahead of most of the field.
What is a good half marathon time by ability?
A good half marathon time depends on how long you have been training. Running Level groups runners into five tiers, where "intermediate" means faster than half the field after roughly two years of consistent running. The table below shows finish times and the pace you would need to hold for the whole distance. Use it to find the band that matches you, then set the next one as your goal.
| Ability level | Men's time | Women's time | Pace (per km, men) | Pace (per mile, men) |
|---|---|---|---|---|
| Beginner | 2:24:57 | 2:42:59 | 6:52 | 11:03 |
| Novice | 2:01:11 | 2:18:48 | 5:45 | 9:15 |
| Intermediate | 1:43:33 | 2:00:12 | 4:54 | 7:54 |
| Advanced | 1:30:33 | 1:46:06 | 4:18 | 6:54 |
| Elite | 1:21:00 | 1:35:30 | 3:50 | 6:11 |
Source: Running Level. To convert your goal time into the exact splits you need, run it through our pace calculator.
How does age change a good half marathon time?
Age matters less than most runners fear, at least until your mid-forties. Average novice times stay fairly flat through your twenties and thirties, then drift slower by a few minutes per decade. For men, a novice runner aged 18 to 39 averages around 1:51, rising to about 2:08 by age 50 and 2:18 by 60. For women, the same bands run roughly 2:02, 2:26 and 2:38. The drop-off steepens after 65, but plenty of runners set personal bests in their forties because experience and consistency beat raw youth over 13.1 miles. The lesson: compare yourself to your own age group, not the overall winner. Most UK races publish age-graded results, and parkrun's age grading lets you benchmark your fitness against the standard for your age every Saturday.
| Age band | Men (novice avg) | Women (novice avg) |
|---|---|---|
| 18–39 | 1:51:00 | 2:02:00 |
| 40–49 | 1:58:00 | 2:11:30 |
| 50–59 | 2:08:00 | 2:26:00 |
| 60–69 | 2:18:00 | 2:38:00 |
| 70+ | 2:37:00 | 3:09:30 |
Source: Marathon Handbook (novice-level estimates by age).
What is the average half marathon pace?
The average half marathon pace in the UK is about 5:49 per kilometre, or 9:22 per mile, which is the pace behind that 2:02:43 average finish. To go under two hours you need to hold 5:41 per km (9:09 per mile), and a sub-1:45 means 4:59 per km (8:01 per mile) for the full 13.1 miles. The hard part is not hitting the pace for one kilometre, it is holding it when your legs tire after 16 km. Most blow-ups happen because runners start too fast on fresh legs and adrenaline. Aim to run the first half slightly slower than goal pace, then hold or build. If you are not sure what your body can sustain, our race time predictor turns a recent 5K or 10K into a realistic half marathon target and the pace to match.
How do I set a realistic target?
Start from a recent race, not a wish. A reliable rule of thumb is to roughly double your 10K time and add 10 to 15 minutes, which accounts for the longer distance. So a 55-minute 10K points to a half around 2:00 to 2:05. From there, build a plan that includes one long run a week and resist the urge to chase a number you have not trained for. If you want a structured benchmark first, our guide on what pace to run a 10K helps you nail the shorter distance before stepping up. And if you have never raced 13.1 before, read how to run your first half marathon in the UK for a sensible build-up. Training with other people makes the long runs fly: find a local group through our run clubs directory and you will rarely run a 10-miler alone again.
Frequently asked questions
What is a good half marathon time?
A good half marathon time is roughly 1:50 or faster, which puts you ahead of the average runner. For men, intermediate level is about 1:43; for women, around 2:00. What is "good" really depends on your age and training, so judge progress against your own previous times.
What is the average half marathon time for a beginner?
A first-timer typically finishes a half marathon in around 2:25 to 2:45, often mixing running and walking in the later miles. Beginner men average about 2:24:57 and beginner women about 2:42:59. Finishing is the win; speed comes with consistent training over your next few races.
Is a 2-hour half marathon good?
Yes. A sub-2-hour half marathon is a popular and respectable goal that puts you faster than the UK average of 2:02:43. It requires holding 5:41 per kilometre (9:09 per mile) for the full 13.1 miles, which usually takes a few months of structured training to reach comfortably.
How long does it take to train for a half marathon?
Most runners need 10 to 14 weeks if they can already run 5K comfortably. The plan builds your weekly long run gradually toward 16 to 18 km. Beginners coming from scratch should allow closer to 16 to 20 weeks to build a base safely and avoid injury.
