Pace, splits & training plan for a sub 1:45 half marathon.
A 1:45 half marathon is a pace of 4:59 per kilometre (8:01 per mile), or 12.1 km/h (7.5 mph).
4:59
8:01
12.1
7.5
| KM | Cumulative Time |
|---|---|
| 1 | 4:59 |
| 2 | 9:57 |
| 3 | 14:56 |
| 4 | 19:54 |
| 5 | 24:53 |
| 6 | 29:52 |
| 7 | 34:50 |
| 8 | 39:49 |
| 9 | 44:48 |
| 10 | 49:46 |
| 11 | 54:45 |
| 12 | 59:43 |
| 13 | 1:04:42 |
| 14 | 1:09:41 |
| 15 | 1:14:39 |
| 16 | 1:19:38 |
| 17 | 1:24:36 |
| 18 | 1:29:35 |
| 19 | 1:34:34 |
| 20 | 1:39:32 |
| 21 | 1:44:31 |
| 21.0975 | 1:45:00 |
| Mile | Cumulative Time |
|---|---|
| 1 | 8:01 |
| 2 | 16:01 |
| 3 | 24:02 |
| 4 | 32:02 |
| 5 | 40:03 |
| 6 | 48:03 |
| 7 | 56:04 |
| 8 | 1:04:05 |
| 9 | 1:12:05 |
| 10 | 1:20:06 |
| 11 | 1:28:06 |
| 12 | 1:36:07 |
| 13 | 1:44:07 |
| 13.11 | 1:45:00 |
Race, tempo and interval paces from the matching 1:45 half marathon training plan, plus two real weeks already on it.
4:59
4:35–5:05
4:02–4:24
Rest
Ladder Intervals
Easy 11km
Tempo
Rest
Easy 5km
Long Run 16km
Rest
Intervals
Easy 11km
Progression
Rest
Easy 5km
Progression
A 4:58/km pace for the half marathon sits just under the 5:00 mark — psychologically satisfying and physically demanding in equal measure. You'll be working throughout but should feel in control until the final 3–4 km, where maintaining pace requires genuine effort and determination.