# 1:45:00 Half Marathon: pace, race predictions & training paces

- **Pace**: 4:59/km · 8:01/mi
- **Speed**: 12.1 km/h · 7.5 mi/h

## Race predictions (Riegel)
- **5K**: 22:49 (4:34/km)
- **10K**: 47:35 (4:46/km)
- **Marathon**: 3:38:55 (5:11/km)

## Fitness
- **Estimated VO2max**: 42.6 ml/kg/min (Strong)

## Training paces
- **Easy**: 5:34–6:39/km
- **Marathon**: 5:02–5:30/km
- **Threshold**: 4:50–5:04/km
- **Interval**: 4:22–4:33/km
- **Repetition**: 4:03–4:12/km

## Splits to run this time
| km | Even | Negative split |
|---|---|---|
| 5 | 24:53 | 25:53 |
| 10 | 49:46 | 51:46 |
| 15 | 1:14:39 | 1:15:52 |
| 20 | 1:39:32 | 1:39:45 |
| 21.1 | 1:45:00 | 1:45:00 |

## In the heat
- **25 °C**: 1:52:54
- **30 °C**: 1:56:57

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