11.11km/h, my running speed on 4km 21:35

Time equivalence by distance

1km	2km	5km	10km
05:24	10:47	26:59	53:57
15km	20km	Half Marathon	Marathon
1:20:56	1:47:55	1:53:50	3:47:41

Split by km

km	Time/km
1 km	05:24
2 km	10:47
3 km	16:11
4 km	21:35

Calculate your running speed

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