21.81km/h, my running speed on 8km 22:00

Time equivalence by distance

1km	2km	5km	10km
02:45	05:30	13:45	27:30
15km	20km	Half Marathon	Marathon
41:15	55:00	58:01	1:56:02

Split by km

km	Time/km
1 km	02:45
2 km	05:30
3 km	08:15
4 km	11:00
5 km	13:45
6 km	16:30
7 km	19:15
8 km	22:00

Calculate your running speed

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