6'30"/km = 9.23 km/h · 5.74 mph

1 track lap = 2'36"0

At 6'30" per kilometre you run 9.23 km/h, or 5.74 mph (10'28"/mile). 5K in 32'30", 10K in 1h05'00", half marathon in 2h17'08", marathon in 4h34'16".