15.01km/h, my running speed on 10km 39:58

Time equivalence by distance

1km	2km	5km	10km
03:60	07:60	19:59	39:58
15km	20km	Half Marathon	Marathon
59:57	1:19:56	1:24:19	2:48:38

Split by km

km	Time/km
1 km	03:60
2 km	07:60
3 km	11:59
4 km	15:59
5 km	19:59
6 km	23:59
7 km	27:59
8 km	31:58
9 km	35:58
10 km	39:58

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