13.1km/h, my running speed on 4.5km 20:36

Time equivalence by distance

1km	2km	5km	10km
04:35	09:09	22:53	45:47
15km	20km	Half Marathon	Marathon
1:08:40	1:31:33	1:36:35	3:13:10

Split by km

km	Time/km
1 km	04:35
2 km	09:09
3 km	13:44
4 km	18:19
0.5 km	20:36

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