Olimpiadas de Verano 2016 - Deportistas
Koki Niwa
Resultados
Men's Singles, 2nd Round, Niwa v Toriola
| 1 | Men's Singles, 2nd Round, Niwa v Toriola | 4 (9-11 11-5 11-7 4-11 11-6 11-1) |
| 1 | Men's Singles, 3rd Round, Fegerl v Niwa | 4 (11-7 11-8 11-9 4-11 11-5) |
| 1 | Men's Singles, 4th Round, Wong C T v Niwa | 4 (6-11 11-6 8-11 5-11 12-10 11-4 11-8) |
| 2 | Men's Singles, Quarterfinal, Niwa v Zhang J | 1 (11-5 4-11 7-11 7-11 4-11) |