23.42km/h, my running speed on 8.2km 21:00

Time equivalence by distance

1km	2km	5km	10km
02:34	05:07	12:48	25:37
15km	20km	Half Marathon	Marathon
38:25	51:13	54:02	1:48:04

Split by km

km	Time/km
1 km	02:34
2 km	05:07
3 km	07:41
4 km	10:15
5 km	12:48
6 km	15:22
7 km	17:56
8 km	20:29
0.2 km	21:00

Calculate your running speed

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