Career
Oh qualified for the 2008 Beijing Olympics for the individual sabre competition. He finished 13th. At 2012 London Olympics, he participated as substitute for the team sabre competition. Despite not getting his chance for participating in quarterfinal match against Germany, and semifinal match against Italy, he came out on final match against Romania on 8th bout.
He faced Alexandru Sirițeanu, who came out as substitute for the Romanian side.
The bout finished in just 14 seconds, when Oh accumulated 5 points for the Korean side, while conceding 1 point.