12 May 2018 To 20 May 2018ATP Challenger Busan, Korea Republic2018 ATP Challenger Busan, South Korea Men SinglesEliminated in qualification by L. Saville.RoundOpponentsStatusScoreQualificationLuke SavilleLost6 - 1 6 - 0
05 May 2018 To 13 May 2018ATP Challenger Gimcheon, Korea Republic2018 ATP Challenger Gimcheon, Korea Republic Men SinglesEliminated in qualification by B. Patael.MORE DETAILSFEWER DETAILSRoundOpponentsStatusScoreQualificationBen PataelLost3 - 6 2 - 6
28 Apr 2018 To 06 May 2018ATP Challenger Seoul, Korea Republic2018 ATP Challenger Seoul, South Korea Men SinglesEliminated in qualification by J. Nam.MORE DETAILSFEWER DETAILSRoundOpponentsStatusScoreQualificationJi Sung NamLost2 - 6 2 - 6
15 Sep 2017 To 24 Sep 2017ATP Challenger Gwangju, Korea Republic2017 ATP Challenger Gwangju, South Korea Men SinglesEliminated in qualification by W. Jang.MORE DETAILSFEWER DETAILSRoundOpponentsStatusScoreQualificationWoo Hyeok JangLost6 - 4 6 - 4