Karel Herr gained his coaching experience in the traditional Czech club Sparta Praha. Despite his youth, Herr has already had a number of interesting experiences that even older trainers might envy. As a player, for example, he won four times in the European University Hockey League for Charles University. The coach license holder A taught hockey in Mexico or China, among others. He is currently coaching the IHC Písek second league team.

In HDC Czech Republic, he participates in youth development, especially in the context of day, weekend and summer camps.