15.17km/h, my running speed on 6km 23:43

Time equivalence by distance

1km	2km	5km	10km
03:57	07:54	19:46	39:32
15km	20km	Half Marathon	Marathon
59:18	1:19:03	1:23:24	2:46:47

Split by km

km	Time/km
1 km	03:57
2 km	07:54
3 km	11:52
4 km	15:49
5 km	19:46
6 km	23:43

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