18.93km/h, my running speed on 8.4km 26:37

Time equivalence by distance

1km	2km	5km	10km
03:10	06:20	15:51	31:41
15km	20km	Half Marathon	Marathon
47:32	1:03:22	1:06:51	2:13:42

Split by km

km	Time/km
1 km	03:10
2 km	06:20
3 km	09:30
4 km	12:40
5 km	15:51
6 km	19:01
7 km	22:11
8 km	25:21
0.4 km	26:37

Calculate your running speed

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