Home History
| Qatar Open 2019, MS | 2017/02/18 14:15 | Dimitrij Ovtcharov v Koki Niwa | L | 4-3 |
| Qatar Open 2019, MS | 2017/02/18 05:30 | Jiang, Tianyi v Koki Niwa | W | 1-4 |
| Qatar Open 2019, MS | 2017/02/17 09:45 | Harmeet Desai v Koki Niwa | W | 1-4 |
| Qatar Open 2019, MS | 2017/02/16 11:15 | Anthony, Amalraj v Koki Niwa | W | 0-4 |
| Qatar Open 2019, MS | 2016/12/09 12:00 | Koki Niwa v Zhendong Fan | L | 1-4 |
| Swedish Open (WTP) 2019, MS, Qualification | 2016/11/19 12:00 | Karlsson, Mattias v Koki Niwa | L | 4-1 |
| Swedish Open (WTP) 2019, MS, Qualification | 2016/11/18 17:40 | Sharath Kamal Achanta v Koki Niwa | W | 0-4 |
| Swedish Open (WTP) 2019, MS, Qualification | 2016/11/18 12:45 | Nordberg, Hampus v Koki Niwa | W | 1-4 |
Away History
| Qatar Open XD | 2017/02/22 14:41 | Chien-An Chen v Ricardo Walther | W | 0-4 |
| Qatar Open XD | 2017/02/22 11:05 | Ricardo Walther v Tomokazu Harimoto | W | 4-3 |
| Qatar Open XD | 2017/02/21 16:20 | Ricardo Walther v Mohammed Abdulwahhab | W | 4-0 |
| Qatar Open XD | 2017/02/21 11:27 | Ricardo Walther v Berge Koukezian | W | 4-0 |
| Qatar Open 2019, MS | 2017/02/17 09:45 | Jiang, Tianyi v Ricardo Walther | L | 4-3 |
| Qatar Open 2019, MS | 2017/02/16 15:45 | Ghosh, Soumyajit v Ricardo Walther | W | 3-4 |
| Qatar Open 2019, MS | 2017/01/20 20:00 | Ricardo Walther v Ruwen Filus | L | 2-4 |
| Qatar Open 2019, MS | 2017/01/19 20:30 | Chien-An Chen v Ricardo Walther | W | 3-4 |