12.99km/h, my running speed on 8km 36:56

Time equivalence by distance

1km	2km	5km	10km
04:37	09:14	23:05	46:10
15km	20km	Half Marathon	Marathon
1:09:15	1:32:20	1:37:24	3:14:48

Split by km

km	Time/km
1 km	04:37
2 km	09:14
3 km	13:51
4 km	18:28
5 km	23:05
6 km	27:42
7 km	32:19
8 km	36:56

Calculate your running speed

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