 Lambdin competes in the heavyweight division (+190 lbs/+87 kg).As of May 1, 2013, Lambdin was ranked 10th in the WTF World Taekwondo rankings.As of March 18, 2019, Lambdin was ranked 13th in the Olympic Kyorugi Ranking (Senior Division / M+80 kg) and 10th in the World Kyorugi Ranking (Senior Division / M+87 kg).