15.12km/h, my running speed on 10km 39:40

Time equivalence by distance

1km	2km	5km	10km
03:58	07:56	19:50	39:40
15km	20km	Half Marathon	Marathon
59:30	1:19:20	1:23:41	2:47:22

Split by km

km	Time/km
1 km	03:58
2 km	07:56
3 km	11:54
4 km	15:52
5 km	19:50
6 km	23:48
7 km	27:46
8 km	31:44
9 km	35:42
10 km	39:40

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