11.9km/h, my running speed on 8.3km 41:50

Time equivalence by distance

1km	2km	5km	10km
05:02	10:05	25:12	50:24
15km	20km	Half Marathon	Marathon
1:15:36	1:40:48	1:46:20	3:32:40

Split by km

km	Time/km
1 km	05:02
2 km	10:05
3 km	15:07
4 km	20:10
5 km	25:12
6 km	30:14
7 km	35:17
8 km	40:19
0.3 km	41:50

Calculate your running speed

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