16.21km/h, my running speed on 4km 14:48

Time equivalence by distance

1km	2km	5km	10km
03:42	07:24	18:30	37:00
15km	20km	Half Marathon	Marathon
55:30	1:14:00	1:18:04	2:36:07

Split by km

km	Time/km
1 km	03:42
2 km	07:24
3 km	11:06
4 km	14:48

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