15.66km/h, my running speed on 10km 38:18

Time equivalence by distance

1km	2km	5km	10km
03:50	07:40	19:09	38:18
15km	20km	Half Marathon	Marathon
57:27	1:16:36	1:20:48	2:41:36

Split by km

km	Time/km
1 km	03:50
2 km	07:40
3 km	11:29
4 km	15:19
5 km	19:09
6 km	22:59
7 km	26:49
8 km	30:38
9 km	34:28
10 km	38:18

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