Head to Head
| ITTF Finals | 2020/11/20 04:30 | Gaoyuan Lin v Koki Niwa | W | 4-0 |
| German Open | 2020/01/31 18:30 | Koki Niwa v Gaoyuan Lin | W | 3-4 |
| Qatar - Open - Feminin | 2018/10/20 17:45 | Koki Niwa v Gaoyuan Lin | W | 1-4 |
| Qatar Open - Dublu Mixt | 2017/09/23 14:00 | Gaoyuan Lin v Koki Niwa | W | 4-1 |
Home History
| WTT Contender - Tunis | 2022/08/03 15:00 | Gaoyuan Lin v Joao Monteiro | W | 3-1 |
| WTT Champions - Budapesta | 2022/07/23 12:00 | Tomokazu Harimoto v Gaoyuan Lin | L | 4-3 |
| WTT Champions - Budapesta | 2022/07/22 16:45 | Gaoyuan Lin v Chih Yuan Chuang | W | 4-0 |
| WTT Champions - Budapesta | 2022/07/21 13:30 | Gaoyuan Lin v Yukiya Uda | W | 3-0 |
| WTT Champions - Budapesta | 2022/07/20 17:00 | Gaoyuan Lin v Timo Boll | W | 3-0 |
| WTT Champions - Budapesta | 2022/07/19 10:00 | Yun-Ju Lin v Gaoyuan Lin | W | 2-3 |
| WTT Star Contender - Budapesta | 2022/07/15 17:30 | Long Ma v Gaoyuan Lin | L | 3-2 |
| WTT Star Contender - Budapesta | 2022/07/15 09:20 | Gaoyuan Lin v Dimitrij Ovtcharov | W | 3-0 |
Away History
| WTT Contender - Tunis | 2022/08/03 15:30 | Koki Niwa v Jaehyun An | W | 3-1 |
| WTT - Contender Tunis - Calificari | 2022/08/02 18:30 | Wen Sun v Koki Niwa | W | 1-3 |
| WTT - Contender Tunis - Calificari | 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 |
| Japonia - T League | 2022/03/03 10:25 | Yuya Oshima v Koki Niwa | W | 0-1 |
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