15.34km/h, my running speed on 4.4km 17:12

Time equivalence by distance

1km	2km	5km	10km
03:55	07:49	19:33	39:05
15km	20km	Half Marathon	Marathon
58:38	1:18:11	1:22:28	2:44:57

Split by km

km	Time/km
1 km	03:55
2 km	07:49
3 km	11:44
4 km	15:38
0.4 km	17:12

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