7.11km/h, my running speed on 21km 2:57:01

Time equivalence by distance

1km	2km	5km	10km
08:26	16:52	42:09	1:24:18
15km	20km	Half Marathon	Marathon
2:06:26	2:48:35	2:57:50	5:55:41

Split by km

km	Time/km
1 km	08:26
2 km	16:52
3 km	25:17
4 km	33:43
5 km	42:09
6 km	50:35
7 km	59:00
8 km	1:07:26
9 km	1:15:52
10 km	1:24:18
11 km	1:32:43
12 km	1:41:09
13 km	1:49:35
14 km	1:58:01
15 km	2:06:26
16 km	2:14:52
17 km	2:23:18
18 km	2:31:44
19 km	2:40:09
20 km	2:48:35
21 km	2:57:01

Calculate your running speed

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