15.27km/h, my running speed on 1.4km 05:30

Time equivalence by distance

1km	2km	5km	10km
03:56	07:51	19:39	39:17
15km	20km	Half Marathon	Marathon
58:56	1:18:34	1:22:53	2:45:46

Split by km

km	Time/km
1 km	03:56
0.4 km	05:30

Calculate your running speed

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