15.13km/h, my running speed on 5.5km 21:48

Time equivalence by distance

1km	2km	5km	10km
03:58	07:56	19:49	39:38
15km	20km	Half Marathon	Marathon
59:27	1:19:16	1:23:37	2:47:15

Split by km

km	Time/km
1 km	03:58
2 km	07:56
3 km	11:53
4 km	15:51
5 km	19:49
0.5 km	21:48

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