15.03km/h, my running speed on 4.9km 19:33

Time equivalence by distance

1km	2km	5km	10km
03:59	07:59	19:57	39:54
15km	20km	Half Marathon	Marathon
59:51	1:19:48	1:24:10	2:48:21

Split by km

km	Time/km
1 km	03:59
2 km	07:59
3 km	11:58
4 km	15:58
0.9 km	19:33

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