Endurometry
To finish a Half Marathon (21.098 km) in 1 hour 25 minutes, you need to hold 4:02 /km (6:29 /mi) — an average speed of 14.89 km/h. The tables below list the time you should pass every kilometre and mile.
Need a printout? Use the pace band generator.
Half Marathon Split Times (1 hour 25 minutes)
| Kilometre | Cumulative time | Split pace |
|---|---|---|
| 1 km | 4:02 | 4:02 |
| 2 km | 8:03 | 4:02 |
| 3 km | 12:05 | 4:02 |
| 4 km | 16:07 | 4:02 |
| 5 km | 20:09 | 4:02 |
| 6 km | 24:10 | 4:02 |
| 7 km | 28:12 | 4:02 |
| 8 km | 32:14 | 4:02 |
| 9 km | 36:16 | 4:02 |
| 10 km | 40:17 | 4:02 |
| 11 km | 44:19 | 4:02 |
| 12 km | 48:21 | 4:02 |
| 13 km | 52:23 | 4:02 |
| 14 km | 56:24 | 4:02 |
| 15 km | 1:00:26 | 4:02 |
| 16 km | 1:04:28 | 4:02 |
| 17 km | 1:08:29 | 4:02 |
| 18 km | 1:12:31 | 4:02 |
| 19 km | 1:16:33 | 4:02 |
| 20 km | 1:20:35 | 4:02 |
| 21 km | 1:24:36 | 4:02 |
| 21.098 km (finish) | 1:25:00 | 4:02 |
Mile Splits
| Mile | Cumulative time | Split pace |
|---|---|---|
| Mile 1 | 6:29 | 6:29 |
| Mile 2 | 12:58 | 6:29 |
| Mile 3 | 19:27 | 6:29 |
| Mile 4 | 25:56 | 6:29 |
| Mile 5 | 32:25 | 6:29 |
| Mile 6 | 38:54 | 6:29 |
| Mile 7 | 45:23 | 6:29 |
| Mile 8 | 51:52 | 6:29 |
| Mile 9 | 58:21 | 6:29 |
| Mile 10 | 1:04:50 | 6:29 |
| Mile 11 | 1:11:19 | 6:29 |
| Mile 12 | 1:17:48 | 6:29 |
| Mile 13 | 1:24:17 | 6:29 |
| 13.109 mi (finish) | 1:25:00 | 6:29 |
More pace charts
Frequently Asked Questions
How fast do I need to run a Half Marathon in 1 hour 25 minutes?
Average pace 4:02 /km (6:29 /mi), 14.89 km/h.
Should I run even splits?
Even effort is the most economical, but the first 10–15% is usually crowded. Start 5–10 s/km slower and settle into target pace.
My GPS shows extra distance
Courses usually measure a few hundred metres long on GPS. Run slightly faster than target by feel, or lap manually at the markers.
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