12.57km/h, my running speed on 4.4km 21:00

Time equivalence by distance

1km	2km	5km	10km
04:46	09:33	23:52	47:44
15km	20km	Half Marathon	Marathon
1:11:35	1:35:27	1:40:41	3:21:23

Split by km

km	Time/km
1 km	04:46
2 km	09:33
3 km	14:19
4 km	19:05
0.4 km	20:60

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