1:20 half marathon pace
To finish a half marathon in 1:20:00 you need to average 6:06 per mile — 3:48 per kilometre.
- Per mile
- 6:06
- Per km
- 3:48
- Treadmill mph
- 9.8
- km/h
- 15.8
- Halfway (even)
- 40:00
- Per 400 m lap
- 1:31
1:20 splits
Even pace, elapsed time at each marker. Need a negative split or a printable wristband? Use the split calculator.
| Mile | Elapsed |
|---|---|
| 1 | 6:06 |
| 2 | 12:12 |
| 3 | 18:18 |
| 4 | 24:25 |
| 5 | 30:31 |
| 6 | 36:37 |
| 7 | 42:43 |
| 8 | 48:49 |
| 9 | 54:55 |
| 10 | 1:01:02 |
| 11 | 1:07:08 |
| 12 | 1:13:14 |
| 13 | 1:19:20 |
| Finish | 1:20:00 |
Training paces for a 1:20 half marathon
From the Daniels VDOT model at VDOT 58.4 — the fitness a 1:20:00 half marathon implies.
| Run type | Pace |
|---|---|
| Easy & long runs | 7:16–8:01/mi · 4:31–4:59/km |
| Marathon pace (VDOT) | 6:23/mi · 3:58/km |
| Threshold / tempo | 6:02/mi · 3:45/km |
| Intervals (3–5 min) | 5:33/mi · 3:27/km |
| Repetitions (200–400 m) | 5:14/mi · 3:15/km |
- Equivalent Mile
- 5:05
- Equivalent 5K
- 17:27
- Equivalent 10K
- 36:11
- Equivalent Marathon
- 2:47:11
Equivalents assume equal training for each distance. Personalise with the VDOT calculator or race time predictor.
Racing to 1:20:00
Even pacing is the most economical way to hit a time goal. Plan the first 5 km a few seconds slower than 3:48/km while the field spreads out, then settle. A small negative split — through halfway in 40:24, home in 39:36 — leaves room to finish strong.
GPS watches usually read slightly long on road courses, so trust the official markers and the elapsed times above rather than the watch’s average pace.
Questions runners ask
What pace do I need for a 1:20 half marathon?
6:06 per mile or 3:48 per kilometre, held evenly for 13.11 miles (21.0975 km). That is 9.83 mph or 15.82 km/h.
What treadmill speed is 1:20 half marathon pace?
9.8 mph or 15.8 km/h. Many runners add a 1% incline to mimic outdoor effort, following Jones and Doust (1996).
What should my halfway split be for a 1:20 half marathon?
40:00 for perfectly even pacing. A gentle 2% negative split puts you through halfway in 40:24 and asks for 39:36 on the way home.
What other race times are equivalent to a 1:20 half marathon?
Using Jack Daniels’ VDOT model (VDOT 58.4): Mile 5:05, 5K 17:27, 10K 36:11, Marathon 2:47:11. Longer-race equivalents assume you have done the endurance training for that distance.
How should I train for a 1:20 half marathon?
Daniels-style training paces for this goal: easy 7:16–8:01 per mile, threshold 6:02 per mile, interval 5:33 per mile. Most weekly running should be easy, with one or two quality sessions.