15.78km/h, my running speed on 10km 38:00

Time equivalence by distance

1km	2km	5km	10km
03:48	07:36	19:00	38:00
15km	20km	Half Marathon	Marathon
57:00	1:16:00	1:20:10	2:40:20

Split by km

km	Time/km
1 km	03:48
2 km	07:36
3 km	11:24
4 km	15:12
5 km	19:00
6 km	22:48
7 km	26:36
8 km	30:24
9 km	34:12
10 km	38:00

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