Marathon Pace Calculator

Convert the marathon world record's pacing to your goal time. Apply the top runners' effort distribution to your own race.

World Record Split Converter

Target finish timeTip: type 330 for 3:30:00 — no colons needed

Pacing basis

Distance unit

Split interval

Pacing pattern

An idealised smooth negative split — steady, near-even pacing.

Point	Time	Segment	Pace	vs even
5 km	21:35	21:35	4:19/km	+0:16
10 km	43:06	21:30	4:18/km	+0:26
15 km	1:04:31	21:25	4:17/km	+0:32
20 km	1:25:52	21:21	4:16/km	+0:33
25 km	1:47:11	21:19	4:16/km	+0:32
30 km	2:08:27	21:16	4:15/km	+0:29
35 km	2:29:40	21:12	4:14/km	+0:21
40 km	2:50:47	21:07	4:13/km	+0:09
Finish	3:00:00	9:13	4:12/km	0:00

What this means. Running 3:00:00 with the world-record pacing curve gives a first half of 1:30:33 and a second half of 1:29:27 — a negative split of about 1:06. Your early pace is slightly controlled and your second half is faster, just like the record.