18.55km/h, my running speed on 4km 12:56

Time equivalence by distance

1km	2km	5km	10km
03:14	06:28	16:10	32:20
15km	20km	Half Marathon	Marathon
48:30	1:04:40	1:08:13	2:16:26

Split by km

km	Time/km
1 km	03:14
2 km	06:28
3 km	09:42
4 km	12:56

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