For the &lt;a href="Snooker%20season%202013/2014"&gt;2013/2014 season&lt;/a&gt;, Eckardt at the age of 23 became the youngest ever member of the referee A-squad, the group of twelve referees licensed to work in the final rounds of all ranked tournaments. In the 2015 German Masters, Eckardt became the youngest person to referee a full ranking tournament final. Eckardt also refereed the 2016 European Masters final in Bucharest, Romania. In 2018 and 2019, he refereed at the World Snooker Championship in Sheffield. In 2020, he refereed the final of the World Snooker Championship.