Home History
| WTT Star Contender Doha | 2021/03/09 12:35 | Koki Niwa v Gustavo Tsuboi | W | 0-3 |
| WTT Star Contender Doha | 2021/03/08 08:35 | Gustavo Tsuboi v Jonathan Groth | W | 3-1 |
| WTT Contender - Doha | 2021/03/03 11:15 | Gustavo Tsuboi v Hugo Calderano | L | 1-3 |
| Coupe du monde | 2020/11/13 09:00 | Robert Gardos v Gustavo Tsuboi | L | 4-1 |
| Coupe du monde | 2020/11/13 03:00 | Woojin Jang v Gustavo Tsuboi | L | 4-0 |
| Pan Am Cup | 2020/02/09 23:00 | Hugo Calderano v Gustavo Tsuboi | L | 4-1 |
| Pan Am Cup | 2020/02/09 15:50 | Gustavo Tsuboi v Kanak Jha | W | 4-3 |
| Pan Am Cup | 2020/02/08 15:00 | Gustavo Tsuboi v Alberto Mino | L | 2-3 |
Away History
| WTT Star Contender Doha | 2021/03/09 08:35 | Kirill Gerassimenko v Jeoung, Youngsik | W | 2-3 |
| ITTF Finals | 2020/11/19 03:40 | Zhendong Fan v Jeoung, Youngsik | L | 4-0 |
| Coupe du monde | 2020/11/14 12:45 | Woojin Jang v Jeoung, Youngsik | L | 4-2 |
| Coupe du monde | 2020/11/14 04:30 | Jeoung, Youngsik v Hugo Calderano | W | 4-2 |
| Coupe du monde | 2020/11/13 09:45 | Jeoung, Youngsik v Ahmed Saleh | W | 4-0 |
| Coupe du monde | 2020/11/13 06:45 | Jeoung, Youngsik v Chun Ting Wong | L | 2-4 |
| Coupe du monde | 2020/11/13 03:45 | Jeoung, Youngsik v Tomislav Pucar | W | 4-0 |
| German Open 2020, MS | 2020/01/30 19:00 | Jeoung, Youngsik v Zhao, Zihao | L | 3-4 |