What Is a Good Half Marathon Time?
A good half marathon time depends on your age, gender, and training background. The quick benchmarks:
| Level | Men | Women |
|---|---|---|
| First-timer / beginner | 2:30–3:00+ | 2:45–3:15+ |
| Recreational runner | 2:00–2:30 | 2:15–2:45 |
| Average trained runner | 1:45–2:00 | 2:00–2:15 |
| Good (competitive age-grouper) | 1:30–1:45 | 1:45–2:00 |
| Very good (top 15% of finishers) | 1:20–1:30 | 1:35–1:45 |
| Excellent | 1:10–1:20 | 1:25–1:35 |
| Sub-elite / elite | Under 1:05 | Under 1:15 |
*World records (as of 2026): Men 57:31 (Jacob Kiplimo), Women 1:02:52 (Letesenbet Gidey)*
Average Half Marathon Times by Age Group
Data aggregated from major US and global half marathons including Chicago Half, NYC Half, and RunningUSA national reports:
Men's Average Half Marathon Finish Times
| Age Group | Average Finish | Average Pace (min/km) |
|---|---|---|
| 16–19 | 1:55:00 | 5:27 |
| 20–29 | 1:52:00 | 5:19 |
| 30–39 | 1:55:00 | 5:27 |
| 40–49 | 2:00:00 | 5:41 |
| 50–59 | 2:09:00 | 6:07 |
| 60–69 | 2:22:00 | 6:44 |
| 70–79 | 2:48:00 | 7:57 |
Women's Average Half Marathon Finish Times
| Age Group | Average Finish | Average Pace (min/km) |
|---|---|---|
| 16–19 | 2:16:00 | 6:27 |
| 20–29 | 2:17:00 | 6:30 |
| 30–39 | 2:20:00 | 6:38 |
| 40–49 | 2:23:00 | 6:47 |
| 50–59 | 2:36:00 | 7:23 |
| 60–69 | 2:55:00 | 8:17 |
| 70–79 | 3:18:00 | 9:21 |
Half Marathon → Marathon Equivalents
The half marathon is the most predictive single race for marathon performance. The Riegel formula conversion factor from half marathon to marathon is approximately 2.09 for trained runners (slightly higher than 2.0 due to the extra fatigue of the second half at full marathon distance).
| Half Marathon Time | Predicted Marathon | Boston Qualifier? (Open Men/Women) |
|---|---|---|
| 1:25 | ~2:58 | Yes (Men 18–34: Sub-3:00) |
| 1:30 | ~3:09 | Borderline (Women 18–34: Sub-3:30) |
| 1:40 | ~3:30 | Yes (Women 18–34) |
| 1:45 | ~3:40 | No — 10 min off men's qualifier |
| 2:00 | ~4:12 | No |
| 2:15 | ~4:44 | No |
| 2:30 | ~5:15 | No |
*Note: Boston Qualifying times alone are often insufficient — athletes need to beat the qualifier by an additional margin due to field size cutoffs. In 2025, the cutoff was 5:29 under qualifying time.*
Age-Graded Performance: How Good Is Your Time Really?
Age-grading (WMA tables) lets you compare across age groups. A 55-year-old woman running 2:10 is performing at a higher relative level than a 28-year-old woman running 2:10.
| Age Grade % | Classification |
|---|---|
| 90%+ | World class |
| 80–89% | National class |
| 70–79% | Regional class |
| 60–69% | Local competitive |
| 50–59% | Average for trained runners |
| Under 50% | Recreational |
Example: A 50-year-old man running 1:45 achieves approximately 72% age grade — regional class, outperforming what the raw time suggests.
What Counts as "Fast" vs. "Completing"?
The majority of half marathon participants are not elite athletes — they are recreational runners who set personal goals. The most useful benchmarks for non-competitive runners:
- Finishing the half marathon is the first achievement — roughly 20% of adults who attempt to train for one don't complete a race
- Sub-2:30 puts you faster than approximately 40% of female finishers and 55% of male finishers nationally
- Sub-2:00 (5:41/km) is a significant benchmark — roughly the 40th percentile for men and 25th for women
- Sub-1:45 for men / Sub-2:00 for women is a meaningful "good" target for a committed recreational runner
- Sub-1:30 for men / Sub-1:45 for women is "excellent" and requires structured training
How to Improve Your Half Marathon Time
From 2:30+ → Sub-2:00 (Beginner → Recreational)
From 2:00 → Sub-1:45
From 1:45 → Sub-1:30
Frequently Asked Questions
Is running a half marathon in 2 hours good? Yes — sub-2:00 (5:41/km pace) is a solid achievement. Nationally, it places you faster than approximately 35–40% of all half marathon finishers. For a first-time half marathoner, sub-2:00 indicates you came in with real training behind you.
How long does it take to train for a half marathon? Starting from the ability to run 5km comfortably: 10–16 weeks. Starting from no running base: 20–28 weeks. Most beginner half marathon plans run 12 weeks and assume you can already run 30 minutes continuously.
How much slower is a half marathon than a 10K pace? For most trained runners, half marathon pace is approximately 15–25 seconds per km slower than 10K race pace. A runner racing 10K at 5:00/km should target approximately 5:15–5:25/km for a half marathon. The gap widens as fitness decreases — less-trained runners show a larger pace drop from 10K to half marathon due to reduced endurance capacity.
Can I run a half marathon without training? You can complete one, but it will be miserable and carries injury risk. Walking/jogging the final 10km is a common outcome for undertrained runners. A minimum of 8–10 weeks of consistent running (3×/week, including a long run) dramatically improves the experience and reduces injury risk.
