To run a 5k in 15 min, hold 4'50" per mile, i.e. 12.43 mph (3'00"/km). At that pace: 5K in 15'00", 10K in 30'00", half marathon in 1h03'18", marathon in 2h06'35".
5K in 15 min: 4'50"/mile
1 track lap = 1'12"0
1 track lap = 1'12"0
To run a 5k in 15 min, hold 4'50" per mile, i.e. 12.43 mph (3'00"/km). At that pace: 5K in 15'00", 10K in 30'00", half marathon in 1h03'18", marathon in 2h06'35".