Training with the magic predictor of your marathon time: Yasso 800s
Our co-author of the book The Power to Run (expected March 2022) Koen de Jong uses the Yasso 800s method for his marathon training and asked us if we knew the method and could calculate the required power to run the Yasso intervals. We answered in the affirmative to both questions and in this article we explain the method.
What is the Yasso 800s?
The...