15.4km/h, my running speed on 9.88km 38:29

Time equivalence by distance

1km	2km	5km	10km
03:54	07:47	19:29	38:57
15km	20km	Half Marathon	Marathon
58:26	1:17:54	1:22:10	2:44:21

Split by km

km	Time/km
1 km	03:54
2 km	07:47
3 km	11:41
4 km	15:35
5 km	19:29
6 km	23:22
7 km	27:16
8 km	31:10
9 km	35:03
0.88 km	38:29

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