15.11km/h, my running speed on 21.1km 1:23:45

Time equivalence by distance

1km	2km	5km	10km
03:58	07:56	19:51	39:42
15km	20km	Half Marathon	Marathon
59:32	1:19:23	1:23:44	2:47:29

Split by km

km	Time/km
1 km	03:58
2 km	07:56
3 km	11:54
4 km	15:53
5 km	19:51
6 km	23:49
7 km	27:47
8 km	31:45
9 km	35:43
10 km	39:42
11 km	43:40
12 km	47:38
13 km	51:36
14 km	55:34
15 km	59:32
16 km	1:03:30
17 km	1:07:29
18 km	1:11:27
19 km	1:15:25
20 km	1:19:23
21 km	1:23:21
0.1 km	1:23:45

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