# 1:20:00 Half Marathon: pace, race predictions & training paces

- **Pace**: 3:48/km · 6:06/mi
- **Speed**: 15.8 km/h · 9.8 mi/h

## Race predictions (Riegel)
- **5K**: 17:23 (3:29/km)
- **10K**: 36:15 (3:38/km)
- **Marathon**: 2:46:47 (3:57/km)

## Fitness
- **Estimated VO2max**: 58.4 ml/kg/min (Advanced)

## Training paces
- **Easy**: 4:19–5:11/km
- **Marathon**: 3:54–4:16/km
- **Threshold**: 3:45–3:56/km
- **Interval**: 3:23–3:31/km
- **Repetition**: 3:08–3:15/km

## Splits to run this time
| km | Even | Negative split |
|---|---|---|
| 5 | 18:58 | 19:43 |
| 10 | 37:55 | 39:26 |
| 15 | 56:53 | 57:48 |
| 20 | 1:15:50 | 1:16:00 |
| 21.1 | 1:20:00 | 1:20:00 |

## In the heat
- **25 °C**: 1:24:35
- **30 °C**: 1:26:56

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[Result Breakdown](https://calcpace.app/result) | [Calculators](https://calcpace.app/calculator.md)