21.09km/h, my running speed on 4.8km 13:39

Time equivalence by distance

1km	2km	5km	10km
02:51	05:41	14:13	28:26
15km	20km	Half Marathon	Marathon
42:39	56:53	59:60	1:59:60

Split by km

km	Time/km
1 km	02:51
2 km	05:41
3 km	08:32
4 km	11:23
0.8 km	13:39

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