12.09km/h, my running speed on 4km 19:51

Time equivalence by distance

1km	2km	5km	10km
04:58	09:56	24:49	49:38
15km	20km	Half Marathon	Marathon
1:14:26	1:39:15	1:44:42	3:29:24

Split by km

km	Time/km
1 km	04:58
2 km	09:56
3 km	14:53
4 km	19:51

Calculate your running speed

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