6'50"/km = 8.78 km/h · 5.46 mph

1 track lap = 2'44"0

At 6'50" per kilometre you run 8.78 km/h, or 5.46 mph (11'00"/mile). 5K in 34'10", 10K in 1h08'20", half marathon in 2h24'10", marathon in 4h48'20".