| Belgian International 2019, MS | 2019/09/12 17:30 | Kai Schaefer v Toby Penty | W | 2-1 |
| Belgian International 2019, MS | 2019/09/12 13:30 | Kai Schaefer v Burestedt, Felix | W | 2-0 |
| Kharkiv International 2019, MS | 2019/09/06 07:30 | Heino, Eetu v Kai Schaefer | L | 2-0 |
| World Championships | 2019/08/19 08:40 | Lu, G. Z. v Kai Schaefer | L | 2-0 |
| US Open 2019, MS | 2019/07/10 23:30 | Kai Schaefer v Xiaodong Sheng | L | 0-2 |
| Canada Open | 2019/07/03 20:20 | Kai Schaefer v Lucas Claerbout | L | 0-2 |
| Spanish Int. | 2019/06/14 08:00 | Kai Schaefer v Toby Penty | L | 0-2 |
| Spanish Int. | 2019/06/13 12:45 | Luis Enrique Penalver v Kai Schaefer | W | 0-2 |
| Belgian International 2019, MS | 2019/09/12 17:30 | Luis Enrique Penalver v Ygor Coelho | W | 1-2 |
| Belgian International 2019, MS | 2019/09/12 13:00 | Julien Carraggi v Ygor Coelho | W | 0-2 |
| World Championships | 2019/08/19 10:00 | Zii Jia Lee v Ygor Coelho | L | 2-0 |
| Pan Am Games | 2019/08/02 19:00 | Ygor Coelho v Brian Yang | W | 2-0 |
| Pan Am Games | 2019/08/01 22:00 | Ygor Coelho v Ho-Shue, Jason Anthony | W | 2-1 |
| Pan Am Games | 2019/07/31 22:40 | Ygor Coelho v Lam, Timothy | W | 2-0 |
| Pan Am Games | 2019/07/30 17:30 | Ygor Coelho v Martinez Palacio, L. | W | 2-0 |
| US Open 2019, MS | 2019/07/10 22:00 | Ygor Coelho v Chun-Yi Lin | L | 0-2 |