Hey @dragosrua, dind't know you were an ultra nunner. You probably know Kilian Jornet and and silver medal 2005 long distance duatlon Marcel Zamora both from my hometown, Barcelona.
I remember the day I met Marcel, 10 years ago, a common friend introduced me to him and I had a chance to congratulate him for his recent silver medal and we chat for few minutes. I was amazed when asked him how he was doing after coming out of a minor injury and he told me he was ok but his leg was starting to hurt after running 100km. I was just amazed at how someone can run for more than 100km and just worry because after that his leg hurts :)
He is a very humble guy and his answer was, "nothing to be proud of, as with anything in life, just training, training and training".