4mph, my running speed on 4mi 1:00:00

Time equivalence by distance

1mi	2mi	5mi	10mi
15:00	30:00	1:15:00	2:30:00
15mi	20mi	Half Marathon	Marathon
3:45:00	5:00:00	3:16:38	6:33:17

Split by mi

mi	Time/mi
1 mi	15:00
2 mi	30:00
3 mi	45:00
4 mi	1:00:00

Calculate your running speed

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