Jeff Byrnes has been a competitive online Mario Kart player since 2006. It was this experience that allowed him to take first place in the Mario Kart 7 time trial challenge and make the 2017 Nintendo World Championships via the Chicago qualifier. Jeff went on to survive several rounds of the championships in New York, eventually being eliminated in the Mario Party round directly before the finals. Overall he placed fourth out of 24 qualifiers and invitees.