In fact, Walsh even helped me along by giving me this book, co-written by @festinaboy. It estimated power outputs, physiology etc. He swore by it then, so if you want to know what Walsh USED to think about Tour climb performances (I assume it’s changed now), just follow Antoine pic.twitter.com/i6YMVp824l

— Ross Tucker (@Scienceofsport) July 11, 2019