To run a marathon in 4:15, hold 9'44" per mile, i.e. 6.17 mph (6'03"/km). At that pace: 5K in 30'13", 10K in 1h00'26", half marathon in 2h07'30", marathon in 4h15'00".
Marathon in 4:15: 9'44"/mile
1 track lap = 2'25"0
1 track lap = 2'25"0
To run a marathon in 4:15, hold 9'44" per mile, i.e. 6.17 mph (6'03"/km). At that pace: 5K in 30'13", 10K in 1h00'26", half marathon in 2h07'30", marathon in 4h15'00".