Race Shape › Calculators › Running pace calculator › Sub-2:30 half marathon pace
Goal paceSub-2:30 half marathon pace
To run a sub-2:30 half marathon you need to average 7:07 per kilometre — 11:27 per mile, 8.4 km/h — and reach halfway in 1:15:00. A sub-2:30 half is a comfortable first target for a newer runner who can already run 10 km, and the long run does most of the work.
Even-pace splits
| Distance | Clock |
|---|---|
| 5 km | 35:33 |
| 10 km | 1:11:06 |
| 15 km | 1:46:38 |
| 20 km | 2:22:11 |
| 21.1 km | 2:29:59 |
The fitness behind a sub-2:30 half marathon
A sub-2:30 half marathon is a VDOT of about 27.9. The same fitness, trained for each distance, runs:
| 5 km | 32:35 (6:31/km) |
|---|---|
| 10 km | 1:07:49 (6:47/km) |
| Marathon | 5:06:58 (7:16/km) |
So a 10 km in about 1:07:49 is the clearest sign you are ready. If your recent 10 km is well slower than that, the goal is still on — it needs a block, not a hopeful race day.
Training paces for it
| Easy | 8:05–9:12/km at the coast · 8:46/km or slower in Johannesburg |
|---|---|
| Threshold | 6:54/km · 7:29/km in Johannesburg |
| Intervals | 6:15/km · 6:47/km in Johannesburg |
At altitude
The same fitness is slower high up. Raced at about 1 680 m, a sub-2:30 half marathon effort comes out near 2:41:48; to break 2:30:00 up there you need fitness worth about 2:19:04 at the coast. Gauteng runners chasing this time are best off choosing a coastal race.
The sub-2:30 half marathon training plan lays out the weeks; a plan built from your own recent time says plainly whether the goal is on.
Build my sub-2:30 half marathon plan — free to buildSee your whole block before you pay.
Common questions
What pace is a sub-2:30 half marathon?
7:07 per kilometre, or 11:27 per mile.
What 10 km time shows I can run a sub-2:30 half marathon?
About 1:07:49 — the same fitness, trained for that distance.
How fast should easy runs be when training for a sub-2:30 half marathon?
No faster than 8:05/km at sea level, or 8:46/km in Johannesburg. Slower is fine.
Can I run a sub-2:30 half marathon in Johannesburg?
It is harder: at around 1 680 m the same effort is about 8% slower, so you need fitness worth about 2:19:04 at the coast.
How long does it take to train for a sub-2:30 half marathon?
It depends on the gap. Improving about 0.4% a week is a reasonable rate for a trained runner, so a 5% gap is roughly 12–13 weeks. The plan page works it out.