15.47km/h, my running speed on 9.8km 38:00

Time equivalence by distance

1km	2km	5km	10km
03:53	07:45	19:23	38:47
15km	20km	Half Marathon	Marathon
58:10	1:17:33	1:21:48	2:43:37

Split by km

km	Time/km
1 km	03:53
2 km	07:45
3 km	11:38
4 km	15:31
5 km	19:23
6 km	23:16
7 km	27:09
8 km	31:01
9 km	34:54
0.8 km	37:60

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