Career
Jung qualified for two swimming events at the 2012 Summer Olympics in London, by eclipsing FINA B-standard entry times of 2:02.50 (200 m individual medley) and 4:18.98 (400 m individual medley) from the FINA World Championships in Shanghai, China. In the 400 m individual medley, Jung challenged seven other swimmers on the second heat, including two-time Olympian Raphaël Stacchiotti of Luxembourg. He clinched a fifth spot and twenty-eighth overall by six hundredths of a second (006) behind Belarus" Yury Suvorau and Portugal"s Diogo Carvalho, outside his entry time of 4:23.12.
Jung failed to advance into the semifinals, as he placed thirty-second in the preliminary heats.