Iñigo Mujika is one of the most foremost experts in the world in sports performance and tapering. He has made seminal contributions to our understanding of how all different types of athletes should taper. 

http://www.inigomujika.com/en/about-me/#.YJLpJmZKg-w
https://twitter.com/inigomujika_en?lang=hu

Information on coaching-
www.trainright.com

Koop’s Social Media-
Twitter/Instagram- @jasonkoop