Race Pace Pro

Sub-1:45 Half Marathon pace

To finish a half marathon in under 1:45, you need to average 4:59 per kilometre, or 8:01 per mile, for the full 21.0975 km.

Required pace
4:59 /km
8:01 per mile · finish 1:45:00
Steady effort

Even-paced splits

Elapsed time you should see at each marker if you run the whole thing at one effort.

DistanceElapsed
1 km4:59
2 km9:57
3 km14:56
4 km19:54
5 km24:53
6 km29:52
7 km34:50
8 km39:49
9 km44:48
10 km49:46
11 km54:45
12 km59:43
13 km1:04:42
14 km1:09:41
15 km1:14:39
16 km1:19:38
17 km1:24:36
18 km1:29:35
19 km1:34:34
20 km1:39:32
21 km1:44:31
21.1 km1:45:00
DistanceElapsed
1 mi8:01
2 mi16:01
3 mi24:02
4 mi32:02
5 mi40:03
6 mi48:03
7 mi56:04
8 mi1:04:05
9 mi1:12:05
10 mi1:20:06
11 mi1:28:06
12 mi1:36:07
13 mi1:44:07
13.11 mi1:45:00

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.

Open in the calculator

Other Half Marathon targets

All Half Marathon paces →