Sub-3:15 Marathon Pace

Sub-3:15 marathon pace guide. Required pace is 4:37/km (7:26/mi). Get training zones and workout targets to break 3 hours 15 minutes.

Breaking 3:15 requires 4:37/km (7:26/mi) pace. This is a Boston Qualifying time for many age groups and a strong amateur achievement.

Required pace: 4:37/km or 7:26/mile
Boston Qualifier for many age groups
Training zones for sub-3:15 fitness

How to train for a sub-3:15 marathon

Build fitness to break 3:15 in the marathon.

Build mileage: Target 65-85 km/week with most runs at easy pace.
Add tempo work: Run tempo efforts at 4:20-4:25/km to build threshold.
Long runs with pace work: Include marathon pace segments in your long runs.
Race smart: Start conservatively and execute even splits.

Frequently asked questions

What pace do I need for sub-3:15?

You need to average 4:37/km (7:26/mile) or faster. Aim for 4:35/km to build in a small cushion.

Is sub-3:15 a Boston Qualifier?

Yes, for many age groups. Sub-3:15 qualifies men 45-49 and women 18-34 (with additional buffer time often needed).

What half marathon predicts sub-3:15?

A sub-1:32 half marathon suggests you have sub-3:15 marathon potential with proper marathon-specific training.

Training pace reference

Training paces by recent 5K time (min/km)
5K time	VDOT	Easy	Marathon	Threshold	Interval	Rep
15:00	69.6	3:45–4:30	3:23–3:42	3:15	2:56	2:32
17:30	58.2	4:20–5:12	3:54–4:17	3:46	3:23	2:56
20:00	49.8	4:54–5:53	4:26–4:51	4:16	3:51	3:19
22:30	43.4	5:29–6:34	4:57–5:25	4:46	4:18	3:43
25:00	38.3	6:03–7:14	5:28–5:59	5:16	4:45	4:06
27:30	34.2	6:37–7:53	5:59–6:33	5:46	5:13	4:30
30:00	30.8	7:11–8:32	6:30–7:06	6:16	5:40	4:54
32:30	28.0	7:44–9:10	7:01–7:39	6:46	6:07	5:17
35:00	25.6	8:17–9:48	7:31–8:12	7:15	6:34	5:41

More pacing guides

Method and sources

The numbers on this page are computed with the same code as the TrainPace calculators, from these published methods. They are training guidance, not medical advice.

Daniels, J. Daniels' Running Formula. Human Kinetics — VDOT, training zones, and equivalent race times.
Daniels, J. & Gilbert, J. (1979). Oxygen Power: Performance Tables for Distance Runners — the oxygen-cost and %VO2max equations behind VDOT.

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