15.21km/h, my running speed on 10km 39:26

Time equivalence by distance

1km	2km	5km	10km
03:57	07:53	19:43	39:26
15km	20km	Half Marathon	Marathon
59:09	1:18:52	1:23:12	2:46:23

Split by km

km	Time/km
1 km	03:57
2 km	07:53
3 km	11:50
4 km	15:46
5 km	19:43
6 km	23:40
7 km	27:36
8 km	31:33
9 km	35:29
10 km	39:26

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