At the 2012 Summer Olympics, he was defeated in the second round of the Men's -60 kg event by eventual bronze medalist Felipe Kitadai. At the 2016 Summer Olympics, he had moved up to the men's half-lightweight (-66 kg) division. In Rio, he beat Sulaiman Hamad and Houd Zourdani before losing to eventual gold medalist Fabio Basile in the quarterfinals. Because his opponent reached the final, Tömörkhüleg was entered into the repechage. He lost his match in the repechage to Antoine Bouchard.