20.97km/h, my running speed on 21km 1:00:05

Time equivalence by distance

1km	2km	5km	10km
02:52	05:43	14:18	28:37
15km	20km	Half Marathon	Marathon
42:55	57:13	1:00:22	2:00:43

Split by km

km	Time/km
1 km	02:52
2 km	05:43
3 km	08:35
4 km	11:27
5 km	14:18
6 km	17:10
7 km	20:02
8 km	22:53
9 km	25:45
10 km	28:37
11 km	31:28
12 km	34:20
13 km	37:12
14 km	40:03
15 km	42:55
16 km	45:47
17 km	48:38
18 km	51:30
19 km	54:22
20 km	57:13
21 km	1:00:05

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