SUB 2H MARATHON//REALITY OR FICTION? 

Do you think these athletes could one day reach this goal?
Comment below what you trust in the comments.
The SUB2 project is a “3P” proof-of-concept idea motivated by the need to prevent doping (1P), protect the clean athlete (2P), and promote performance without doping (3P).
The SUB2 project is a “clean running” project, with the aim to promote clean marathon running and high performance marathon running without doping.