15.75km/h, my running speed on 8km 30:28

Time equivalence by distance

1km	2km	5km	10km
03:48	07:37	19:02	38:05
15km	20km	Half Marathon	Marathon
57:07	1:16:10	1:20:21	2:40:42

Split by km

km	Time/km
1 km	03:48
2 km	07:37
3 km	11:25
4 km	15:14
5 km	19:02
6 km	22:51
7 km	26:39
8 km	30:28

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