11.45km/h, my running speed on 4.2km 22:00

Time equivalence by distance

1km	2km	5km	10km
05:14	10:29	26:11	52:23
15km	20km	Half Marathon	Marathon
1:18:34	1:44:46	1:50:30	3:41:01

Split by km

km	Time/km
1 km	05:14
2 km	10:29
3 km	15:43
4 km	20:57
0.2 km	21:60

Calculate your running speed

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