15.06km/h, my running speed on 5.39km 21:28

Time equivalence by distance

1km	2km	5km	10km
03:59	07:58	19:55	39:50
15km	20km	Half Marathon	Marathon
59:44	1:19:39	1:24:01	2:48:03

Split by km

km	Time/km
1 km	03:59
2 km	07:58
3 km	11:57
4 km	15:56
5 km	19:55
0.39 km	21:28

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