Head to Head
| German Open - WD | 2017/11/10 14:30 | Sangeun Jeong v Koki Niwa | L | 4-2 |
| Qatar Open - XD | 2017/04/16 06:30 | Sangeun Jeong v Koki Niwa | L | 3-2 |
Home History
| Qatar Open - Kobiety | 2018/06/08 04:30 | Koki Niwa v Kazuhiro Yoshimura | L | 2-4 |
| Czechy - Extraliga | 2018/06/02 06:10 | Zhendong Fan v Koki Niwa | L | 4-1 |
| Czechy - Extraliga | 2018/06/01 11:40 | Liam Pitchford v Koki Niwa | W | 3-4 |
| Czechy - Extraliga | 2018/05/31 08:40 | Bojan Tokic v Koki Niwa | W | 2-4 |
| Qatar Open - Kobiety | 2018/05/03 12:00 | Siu Hang Lam v Koki Niwa | W | 0-3 |
| Qatar Open - Kobiety | 2018/04/30 18:00 | Koki Niwa v Samuel Walker | L | 0-3 |
| Qatar Open - Kobiety | 2018/04/30 08:30 | Pavel Platonov v Koki Niwa | W | 2-3 |
| Qatar Open - Kobiety | 2018/04/29 15:00 | Cedric Nuytinck v Koki Niwa | W | 0-3 |
Away History
| Qatar Open - XD | 2018/07/18 10:55 | Sangeun Jeong v An Yan | W | 4-1 |
| Qatar Open - XD | 2018/07/18 01:15 | Sangeun Jeong v Qihao Zhou | W | 4-2 |
| Qatar Open - Kobiety | 2018/06/08 06:10 | Yu Zhou v Sangeun Jeong | L | 4-0 |
| Czechy - Extraliga | 2018/06/01 06:40 | Sangeun Jeong v Gaoyuan Lin | L | 0-4 |
| Qatar Open - XD | 2018/05/30 10:00 | Lei Kou v Sangeun Jeong | W | 1-4 |
| Qatar Open - XD | 2018/05/30 04:30 | Heng-Wei Yang v Sangeun Jeong | W | 2-4 |
| Czechy - Extraliga | 2018/05/24 12:10 | Sangeun Jeong v Jonghoon Lim | L | 1-4 |
| German Open - WD | 2018/03/23 18:30 | Sangeun Jeong v Chun Ting Wong | L | 2-4 |