# 1:40:00 Half Marathon: pace, race predictions & training paces

- **Pace**: 4:44/km · 7:38/mi
- **Speed**: 12.7 km/h · 7.9 mi/h

## Race predictions (Riegel)
- **5K**: 21:44 (4:21/km)
- **10K**: 45:19 (4:32/km)
- **Marathon**: 3:28:29 (4:56/km)

## Fitness
- **Estimated VO2max**: 45.1 ml/kg/min (Strong)

## Training paces
- **Easy**: 5:19–6:22/km
- **Marathon**: 4:48–5:15/km
- **Threshold**: 4:37–4:51/km
- **Interval**: 4:10–4:21/km
- **Repetition**: 3:52–4:00/km

## Splits to run this time
| km | Even | Negative split |
|---|---|---|
| 5 | 23:42 | 24:39 |
| 10 | 47:24 | 49:18 |
| 15 | 1:11:06 | 1:12:15 |
| 20 | 1:34:48 | 1:35:00 |
| 21.1 | 1:40:00 | 1:40:00 |

## In the heat
- **25 °C**: 1:47:10
- **30 °C**: 1:50:50

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