As a co-founder of Roller Derby Karlsruhe, Der Könich started to skate with his league in 2011. After one year of gaining NSO experience he started officiating as a referee in April 2012. Since then he has been officiating more than 250 games as a referee, traveling most of the European countries. Being a WFTDA Level 3 certified referee, he was invited to officiate four tournaments in the United States in 2015 and got to officiate Roller Derby on the highest level of gameplay since. He also started tournament head reffing beginning of 2015 and did gain some experience doing so in the last year and a half.