15.54km/h, my running speed on 6.67km 25:45

Time equivalence by distance

1km	2km	5km	10km
03:52	07:43	19:18	38:36
15km	20km	Half Marathon	Marathon
57:55	1:17:13	1:21:27	2:42:54

Split by km

km	Time/km
1 km	03:52
2 km	07:43
3 km	11:35
4 km	15:27
5 km	19:18
6 km	23:10
0.67 km	25:45

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