Head to Head
| Hungarian Open | 2020/02/20 16:50 | Benedikt Duda v Koki Niwa | W | 4-0 |
| Austrian Open | 2019/11/14 17:20 | Koki Niwa v Benedikt Duda | L | 4-2 |
Home History
| EM | 2022/08/19 14:15 | Benedikt Duda v Dang Qiu | L | 1-4 |
| EM | 2022/08/19 08:00 | Benedikt Duda v Daniel Habesohn | W | 4-3 |
| EM | 2022/08/17 19:00 | Benedikt Duda v Jordy Piccolin | W | 4-1 |
| WTT Feeder - Budapest | 2022/07/20 16:30 | Shidong Lin v Benedikt Duda | L | 3-0 |
| WTT Feeder - Budapest | 2022/07/20 11:50 | Can Akkuzu v Benedikt Duda | W | 2-3 |
| WTT Feeder - Budapest | 2022/07/19 17:50 | Cristian Pletea v Benedikt Duda | W | 0-4 |
| WTT Star Contender Budapest | 2022/07/14 18:50 | Patrick Franziska v Benedikt Duda | L | 3-0 |
| WTT Star Contender Budapest | 2022/07/13 15:30 | Benedikt Duda v Ruwen Filus | W | 3-0 |
Away History
| WTT Contender - Tunis | 2022/08/04 15:00 | Gaoyuan Lin v Koki Niwa | L | 3-0 |
| WTT Contender - Tunis | 2022/08/03 15:30 | Koki Niwa v Jaehyun An | W | 3-1 |
| WTT Contender - Tunis - Kvalifikation | 2022/08/02 18:30 | Wen Sun v Koki Niwa | W | 1-3 |
| WTT Contender - Tunis - Kvalifikation | 2022/08/02 14:00 | Yuta Tanaka v Koki Niwa | W | 1-3 |
| WTT Star Contender Budapest Quals | 2022/07/11 10:40 | Cheng-Ting Liao v Koki Niwa | L | 3-2 |
| WTT Contender - Lima | 2022/06/18 19:05 | Koki Niwa v Anton Kallberg | L | 2-3 |
| WTT Contender - Lima | 2022/06/17 23:05 | Horacio Cifuentes v Koki Niwa | W | 1-3 |
| WTT Contender - Lima | 2022/06/17 00:15 | Koki Niwa v Brian Afanador | W | 3-1 |