Oh represented South Korea at the 2014 Pacific-Asia Junior Curling Championships with his team of Jeong Yeong-seok, Kim Seung-min, Park Se-won and Noh Chang-hyun.

At the 2021 Korean Curling Championships, the team made it to the finals of the second round but lost to Gyeongbuk Athletic Association's Kim Soo-hyuk, ultimately finishing in second place.

After a second-place finish at the 2023 Hokkaido Bank Curling Classic, Gangwon Province reached the quarterfinals in four straight Canadian tour events.

This earned them a spot in the gold medal game where, despite a strong start, they gave up key steals in the back half to concede 8–3 to the Canadian team.

[11] At the end of the season, Gangwon Provincial Office represented the country at the World Championship where they were unable to replicate their success from earlier in the year, finishing in twelfth place with a disappointing 2–10 record.