Advent calendar day 19

This person is maybe more famous as a coach in the orienteering society than as a runner. He has a bronze medal from the relay at WOC, and was representing OK 99 Hradec Kralove and Hagaby GoIF as a runner. After his running career was over he continued as a coach for his national team. He stayed in this position for over a decade and helped his runners taking a bunch of medals. The answer of today is his first name.