Training plans Marathon
The sub-4:15 marathon
Running a sub-4:15 marathon means holding 6:03/km (9:44/mi) for 42.2 kilometres. Plan on 4–5 runs and 53–75km per week for around 14–18 weeks. Training happens at three speeds — easy mileage (6:58–7:33/km), tempo work near 5:34/km, and faster reps at about 5:19/km. Whether that timeline is realistic depends on your current fitness — the honest test is a recent race result, not ambition.
Last updated 2026-07-03 · paces computed, not copywritten
Goal pace
6:03/km
9:44/mi
Typical build
14–18 weeks
53–75 km/week
Runs per week
4–5
3 key sessions + easy volume
Required paces
| SESSION | PACE (/KM) |
|---|---|
| Easy runs | 6:58–7:33 |
| Long run | 6:28–6:58 |
| Tempo | 5:34 |
| Intervals | 5:19 |
| Race pace | 6:03 |
Splits at goal pace
| CHECKPOINT | CLOCK |
|---|---|
| 10K | 1:00:26 |
| Half | 2:07:30 |
| 30K | 3:01:18 |
| Finish | 4:15:00 |
Even splits shown — at 6:03/km the opening kilometres should feel almost too easy; that restraint is what a 4:15 costs up front.
A typical week
Key session 1
Intervals — reps around 5:19/km (5K effort) with jog recoveries
Key session 2
Tempo — sustained comfortably-hard running near 5:34/km
Long run
The week's cornerstone at 6:28–6:58/km, adding 4:15-pace finishes as race day nears
Plus 2+ easy runs. All other runs sit at 6:58–7:33/km by design — accumulating volume without stealing from the key days.
Asked often
- What pace is a sub-4:15 marathon?
- 6:03 per kilometre, held for the full marathon. Racing the first half a touch inside 6:03 and finishing strong beats banking time every time.
- How long should I train for a sub-4:15 marathon?
- From a reasonable base, 14–18 weeks. Coming back from time off, add a re-ramp phase before the marathon block rather than compressing it.
- What happens if I miss training weeks?
- Missed weeks are where PDF plans fail: the schedule marches on without you. RunV rebuilds the remaining marathon weeks around what you actually ran.
This fitness at other distances
- Half marathon: 2:02:18 equivalent
- 10K: 55:26 equivalent
- 5K: 26:35 equivalent
Built to get you under 4:15 — and to bend when life does
RunV builds your sub-4:15 plan around your week, then recalibrates it after every run — finished, cut short, or missed.
