15.41km/h, my running speed on 2.5km 09:44

Time equivalence by distance

1km	2km	5km	10km
03:54	07:47	19:28	38:56
15km	20km	Half Marathon	Marathon
58:24	1:17:52	1:22:08	2:44:17

Split by km

km	Time/km
1 km	03:54
2 km	07:47
0.5 km	09:44

Calculate your running speed

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