Could you guys please advice me a very good running coach.I live in South America and have tried for years to coach myself but seem to be stuck at low 17 min 5 k and high 35 10 k.I want to smash my pb's and run sub 17 and 35.I'm age 34.I have followed some free programs at internet but no progress with them.I believe I need a very good experienced coach to help me.I have a good payed job so cost of money is no problem.I want the very best coaching. I reach out here when I believe you can direct me to find the very best coach. Obrigado,thanks you.