Training plans Half marathon
The sub-2:45 half marathon
A sub-2:45 half marathon works out at 7:49/km (12:35/mi), held for the full distance. Typical preparation is 8–12 weeks of 25–40km a week, spread over 3–4 sessions. The work splits into three paces: easy volume at 8:44–9:19/km, threshold running near 7:25/km, and interval reps around 7:10/km. A recent race time is the truest guide to whether this goal fits this season.
Last updated 2026-07-03 · paces computed, not copywritten
Goal pace
7:49/km
12:35/mi
Typical build
8–12 weeks
25–40 km/week
Runs per week
3–4
3 key sessions + easy volume
Required paces
| SESSION | PACE (/KM) |
|---|---|
| Easy runs | 8:44–9:19 |
| Long run | 8:14–8:44 |
| Tempo | 7:25 |
| Intervals | 7:10 |
| Race pace | 7:49 |
Splits at goal pace
| CHECKPOINT | CLOCK |
|---|---|
| 5K | 39:06 |
| 10K | 1:18:12 |
| 15K | 1:57:19 |
| Finish | 2:45:00 |
These are dead-even splits — going out quicker than 7:49/km is the most common way a 2:45 slips away in the final quarter.
A typical week
Key session 1
Intervals — reps around 7:10/km (5K effort) with jog recoveries
Key session 2
Tempo — sustained comfortably-hard running near 7:25/km
Long run
The week's cornerstone at 8:14–8:44/km, adding 2:45-pace finishes as race day nears
Plus 1+ easy runs. The remaining runs stay genuinely easy (8:44–9:19/km); they carry the volume the key sessions are built on.
Asked often
- What pace is a sub-2:45 half marathon?
- 7:49 per kilometre, held for the full half marathon. Even or slightly negative splits protect a 2:45 far better than a fast start.
- How long should I train for a sub-2:45 half marathon?
- From a reasonable base, 8–12 weeks. Start from where your running actually is: a recent race time sets the half marathon timeline better than the calendar does.
- What happens if I miss training weeks?
- A static plan quietly breaks — every later week assumes fitness you didn't build. An adaptive plan like RunV's re-ramps volume and recalibrates paces so the 2:45 goal stays honest.
This fitness at other distances
- Marathon: 5:44:01 equivalent
- 10K: 1:14:47 equivalent
- 5K: 35:52 equivalent
The engine behind your sub-2:45
RunV builds your sub-2:45 plan around your week, then recalibrates it after every run — finished, cut short, or missed.
