Oh is the first South Korean player to record a quadruple-double in any domestic officially-sanctioned adult basketball competition, whether at college or senior level.

He was named tournament MVP after leading his team to win the President's Cup and putting up 26 points and 26 assists in the finals.

At that time, Anyang had a relatively young and inexperienced squad consisting of guard Kim Tae-sul, 2010 draftees Lee Jung-hyun and Park Chan-hee and forward Yang Hee-jong, who had just been discharged from the Sangmu team.

They came up against regular season champions Wonju Dongbu Promy in the playoff final and managed to win four out of six games.

[6] In April 2014, Oh enlisted for mandatory military service and was assigned to the Sangmu team after completing basic training.

Oh, Kim Sun-hyung and several other fellow Chung-Ang University alumni were found to have been involved as college students but never engaged in any gambling-related activities ever since.

They were ordered by the KBL disciplinary committee to pay a fine of 5% of their annual salary, suspended for 20 games and required to serve 120 hours of community service.

[19] He and captain Yang Hee-jong, dubbed "Playoff Kings" for their experience, were crucial in a 3–0 sweep of Daegu KOGAS Pegasus in the quarterfinal series and overcoming league runners-up Suwon KT Sonicboom in the semifinals.

[22] In his most extensive action of the tournament, he dominated Philippines in the seventh-place game, where he scored a tournament-high 31 points and grabbed a game-high 10 rebounds.

[26] Oh's good form during the 2016–17 season led to a call-up for the 2017 FIBA Asia Cup and he was named team captain ahead of the tournament.

[30] Oh was expected to be part of the 2018 Asian Games squad to defend the gold medal due to his good form in the KBL.

[1] As chronic plantar fasciitis limited his ability to jump and physically compete with much larger foreign players, he adapted his game by utilizing his experience and ballhandling skills, leading to him being switched to the forward position occasionally.