Sub-1:55 Half Marathon Pace

To break 1:55:00 you need 5:27 per kilometer or 8:46 per mile (11.0 km/h, 6.8 mph). Set your own target below, then take the splits and a pace band to the start line.

Half marathon

15500

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Pace: 5:27 /km
Status: Sub-2:00 · 5:00 to spare

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Flick: Spin the tape. It lands on round times and snaps to nearby goals.
Drag down: Keep holding and pull away from the tape for ½, ¼ or fine speed.
Roll: Tap a digit on the bib, then drag it up or down.
Keys: ← → move five seconds, Shift moves a minute.

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Your pace band

Clock time at every marker. Print it, cut it, tape it to your wrist.

The same pace from start to finish.

Half marathon1:55:00
5K27:15
10K54:31
15K1:21:46
20K1:49:01
Finish1:55:00

If you can run 1:55:00

Equivalent race times from the Riegel formula. Longer-race predictions assume your endurance training matches.

5K25:00

10K52:07

Half marathon1:55:00

Marathon3:59:46

Workout paces

Interval targets based on your equivalent 5K effort.

Rep	Target
Mile	7:58–8:15
1000m	4:45–5:00
800m	3:43–3:55
400m	1:46–1:52
200m	0:46–0:51

Sub-1:55 half marathon splits

Even-pace clock times for a 1:55:00 half marathon. Holding 5:27 per kilometer finishes in 1:54:59; holding 8:46 per mile finishes in 1:54:56.

Kilometer splits at 5:27/km
5 km	27:15
10 km	54:31
15 km	1:21:46
20 km	1:49:01
Finish	1:55:00

Mile splits at 8:46/mi
Mile 1	8:46
Mile 2	17:33
Mile 3	26:19
Mile 4	35:05
Mile 5	43:52
Mile 6	52:38
Mile 7	1:01:24
Mile 8	1:10:11
Mile 9	1:18:57
Mile 10	1:27:43
Mile 11	1:36:30
Mile 12	1:45:16
Mile 13	1:54:02
Finish (13.1 mi)	1:55:00

Race times that go with a sub-1:55 half marathon

Riegel-formula equivalents for a 1:55:00 half marathon. If your weekly mileage is modest, aim for about 51:21 in the 10K rather than 52:07 before committing to this goal.

5K25:00

10K52:07

marathon3:59:46

Frequently asked questions

What pace is a 1:55 half marathon?

A 1:55:00 half marathon averages 5:27 per kilometer or 8:46 per mile. Holding 5:27 per kilometer finishes in 1:54:59, and 8:46 per mile finishes in 1:54:56.

What 10K time do I need for a sub-1:55 half marathon?

The Riegel formula lines up a 1:55:00 half marathon with about 52:07 for the 10K. A more conservative estimate for runners without high weekly mileage is about 51:21.

What is the halfway split for a sub-1:55 half marathon?

At even pace the halfway split is 57:30. Many runners aim to pass halfway a few seconds slower and finish with a small negative split.