Race Pace Pro

Sub-1:50 Half Marathon pace

To finish a half marathon in under 1:50, you need to average 5:13 per kilometre, or 8:23 per mile, for the full 21.0975 km.

Required pace
5:13 /km
8:23 per mile · finish 1:50:00
Steady effort

Even-paced splits

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

DistanceElapsed
1 km5:13
2 km10:26
3 km15:38
4 km20:51
5 km26:04
6 km31:17
7 km36:30
8 km41:43
9 km46:55
10 km52:08
11 km57:21
12 km1:02:34
13 km1:07:47
14 km1:13:00
15 km1:18:12
16 km1:23:25
17 km1:28:38
18 km1:33:51
19 km1:39:04
20 km1:44:17
21 km1:49:29
21.1 km1:50:00
DistanceElapsed
1 mi8:23
2 mi16:47
3 mi25:10
4 mi33:34
5 mi41:57
6 mi50:21
7 mi58:44
8 mi1:07:08
9 mi1:15:31
10 mi1:23:55
11 mi1:32:18
12 mi1:40:41
13 mi1:49:05
13.11 mi1:50:00

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 →