Phil has coached elite endurance athletes such as Mark Allen .
I talk with endurance coaching legend Phil Maffetone about his latest book , 1 : 59 : The Sub-Two - Hour Marathon Is Within Reach .
endurance coaching legend has coached elite endurance athletes such as Mark Allen .
I talk with endurance coaching legend Phil Maffetone about his latest book , 1 : 59 : The Sub-Two - Hour Marathon Is Within Reach .