2019 Yokkaichi Challenger(일본 요카이치/챌린저80/총상금 $54,160/우승상금 $7200/우승점수 80점)

8일 경기일정

Singles

R3: (11)남지성(세종시청) vs (7)Hiroki Moriya (JPN)

방송: https://livestream.com/ATP/events/8774535

R3: (4)정현(한체대) vs (14)Yusuke Takahashi (JPN) [0-1]

방송: https://livestream.com/ATP/events/8774536

R3: (8)정윤성(CJ제일제당후원, 의정부시청) vs (9)Saketh Myneni (IND)

방송: https://livestream.com/ATP/events/8774532

Doubles

QF: 정윤성(CJ제일제당후원, 의정부시청) / Wu (KOR/TPE) vs 남지성(세종시청) / 송민규(KDB산업은행)

방송: https://livestream.com/ATP/events/8774540

7일 결과

Singles

R2: (11)남지성(세종시청) d. (ITF)Jumpei Yamasaki (JPN) 63 62
R2: (4)정현(한체대) d. Matthew Christopher Romios (AUS) 63 61
R2: (8)정윤성(CJ제일제당후원, 의정부시청) d. Olukayode Alafia Damina Ayeni (USA) 76(1) 63

Doubles

R1: 남지성(세종시청) / 송민규(KDB산업은행) d. (4)Fruttero / Gonzales (USA/PHI) 62 64