Sub-4 Hour Marathon Pace
The exact pace per mile and per kilometer — plus even splits — you need to run a sub-4:00 marathon.
Pace /mile
9:09
Pace /km
5:41
Finish
4:00:00
Even splits (per mile)
| Mile | Cumulative |
|---|---|
| 1 | 9:09 |
| 2 | 18:18 |
| 3 | 27:28 |
| 4 | 36:37 |
| 5 | 45:46 |
| 6 | 54:55 |
| 7 | 1:04:05 |
| 8 | 1:13:14 |
| 9 | 1:22:23 |
| 10 | 1:31:32 |
| 11 | 1:40:41 |
| 12 | 1:49:51 |
| 13 | 1:58:60 |
| 14 | 2:08:09 |
| 15 | 2:17:18 |
| 16 | 2:26:28 |
| 17 | 2:35:37 |
| 18 | 2:44:46 |
| 19 | 2:53:55 |
| 20 | 3:03:05 |
| 21 | 3:12:14 |
| 22 | 3:21:23 |
| 23 | 3:30:32 |
| 24 | 3:39:41 |
| 25 | 3:48:51 |
| 26 | 3:57:60 |
| 26.22 | 4:00:00 |
Breaking 4 hours for the marathon means averaging about 9:09 per mile (5:41 per kilometer) for all 26.2 miles. The splits above turn that into a concrete checkpoint at every mile, so you always know whether you're on pace.
Most runners who go sub-4 bank nothing early — they run the first half a touch slower than goal and aim for an even or slight negative split. Use the full calculator to model negative splits, and the race-time predictor to check whether a sub-4 is realistic from your recent 5K or half time.
Frequently asked questions
What pace is a sub-4 hour marathon?
About 9:09 per mile, or 5:41 per kilometer, held for the full 26.2 miles (42.195 km).
What half-marathon time suggests I can break 4 hours?
As a rough guide, a half marathon around 1:52–1:55 predicts a sub-4 marathon for a well-trained runner, though marathon-specific endurance matters a lot. Check your own equivalent times with the race-time predictor.
Should I run even or negative splits for a sub-4?
A slight negative split — running the second half a little faster than the first — is the safest way to break 4 hours, because going out too fast is the most common reason runners fade late.