Sub-1:20 Half Marathon pace
To finish a half marathon in under 1:20, you need to average 3:48 per kilometre, or 6:06 per mile, for the full 21.0975 km.
Required pace
3:48 /km
6:06 per mile · finish 1:20:00
Interval effort
Even-paced splits
Elapsed time you should see at each marker if you run the whole thing at one effort.
| Distance | Elapsed |
|---|---|
| 1 km | 3:48 |
| 2 km | 7:35 |
| 3 km | 11:23 |
| 4 km | 15:10 |
| 5 km | 18:58 |
| 6 km | 22:45 |
| 7 km | 26:33 |
| 8 km | 30:20 |
| 9 km | 34:08 |
| 10 km | 37:55 |
| 11 km | 41:43 |
| 12 km | 45:30 |
| 13 km | 49:18 |
| 14 km | 53:05 |
| 15 km | 56:53 |
| 16 km | 1:00:40 |
| 17 km | 1:04:28 |
| 18 km | 1:08:15 |
| 19 km | 1:12:03 |
| 20 km | 1:15:50 |
| 21 km | 1:19:38 |
| 21.1 km | 1:20:00 |
| Distance | Elapsed |
|---|---|
| 1 mi | 6:06 |
| 2 mi | 12:12 |
| 3 mi | 18:18 |
| 4 mi | 24:25 |
| 5 mi | 30:31 |
| 6 mi | 36:37 |
| 7 mi | 42:43 |
| 8 mi | 48:49 |
| 9 mi | 54:55 |
| 10 mi | 1:01:02 |
| 11 mi | 1:07:08 |
| 12 mi | 1:13:14 |
| 13 mi | 1:19:20 |
| 13.11 mi | 1:20:00 |
Pacing it in practice
These splits assume even effort on a flat course. Most personal bests are actually run slightly negative. That means a touch slower than target for the first half, then faster once you know the effort is sustainable. Going out fast and hanging on is the most common way to miss a time goal.
Open this target in the calculator to adjust it, switch units, or model a negative split.