| Challenger Sao Paulo | 2022/05/11 22:40 | Guilherme Mattos v Yokoyama, Hiromi | W | 3-0 |
| Challenger Sao Paulo | 2022/04/08 00:40 | Guilherme Mattos v Yokoyama, Hiromi | W | 3-0 |
| Challenger Sao Paulo | 2022/04/07 00:40 | Guilherme Mattos v Yokoyama, Hiromi | W | 3-0 |
| Challenger Sao Paulo | 2022/03/31 22:20 | Yokoyama, Hiromi v Guilherme Mattos | W | 0-3 |
| Challenger Sao Paulo | 2022/03/30 23:20 | Yokoyama, Hiromi v Guilherme Mattos | W | 0-3 |
| Challenger Sao Paulo | 2022/06/18 23:20 | Guilherme Mattos v Ricardo Martins De Brito | W | 3-1 |
| Challenger Sao Paulo | 2022/06/18 22:40 | Marcelo Phaiffer v Guilherme Mattos | W | 0-3 |
| Challenger Sao Paulo | 2022/06/18 22:00 | Mizutani, Fabio v Guilherme Mattos | W | 1-3 |
| Challenger Sao Paulo | 2022/06/18 21:20 | Douglas Tomioka v Guilherme Mattos | W | 1-3 |
| Challenger Sao Paulo | 2022/06/16 02:20 | Alejandro Fernandez Junior v Guilherme Mattos | L | 3-1 |
| Challenger Sao Paulo | 2022/06/16 02:00 | Guilherme Mattos v Rogerio Capobianco | W | 3-0 |
| Challenger Sao Paulo | 2022/06/16 01:20 | Guilherme Mattos v Douglas Tomioka | L | 1-3 |
| Challenger Sao Paulo | 2022/06/16 00:00 | Guilherme Mattos v Andre Cruz | W | 3-0 |
| Challenger Sao Paulo | 2022/06/18 23:20 | Yokoyama, Hiromi v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/06/18 21:40 | Alejandro Fernandez Junior v Yokoyama, Hiromi | L | 3-0 |
| Challenger Sao Paulo | 2022/06/18 21:00 | Mizutani, Fabio v Yokoyama, Hiromi | L | 3-1 |
| Challenger Sao Paulo | 2022/06/12 02:00 | Kayque Valois v Yokoyama, Hiromi | L | 3-0 |
| Challenger Sao Paulo | 2022/06/12 01:20 | Yokoyama, Hiromi v Roberto Tadashi Ishikawa | L | 0-3 |
| Challenger Sao Paulo | 2022/06/12 00:20 | Yokoyama, Hiromi v Marco Cruz | L | 2-3 |
| Challenger Sao Paulo | 2022/06/11 23:40 | Everton Vianna v Yokoyama, Hiromi | W | 1-3 |
| Challenger Sao Paulo | 2022/06/11 23:00 | Yokoyama, Hiromi v Mizutani, Fabio | L | 0-3 |