15.85km/h, my running speed on 10km 37:50

Time equivalence by distance

1km	2km	5km	10km
03:47	07:34	18:55	37:50
15km	20km	Half Marathon	Marathon
56:45	1:15:40	1:19:49	2:39:38

Split by km

km	Time/km
1 km	03:47
2 km	07:34
3 km	11:21
4 km	15:08
5 km	18:55
6 km	22:42
7 km	26:29
8 km	30:16
9 km	34:03
10 km	37:50

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