| UTR Pro Tennis Series Manzanillo | 2021/08/03 13:00 | Guillermo Castaneda v Alan Sau Franco | 5-7,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/09 13:00 | Alexander Richards v Guillermo Castaneda | 5-7,7-6,2-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/08 13:00 | Alejandro Hayen v Guillermo Castaneda | 6-0,6-2 |
| UTR Pro Tennis Series Manzanillo | 2021/08/07 16:00 | Luis Pineda v Guillermo Castaneda | 3-6,0-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/05 14:30 | Guillermo Castaneda v Maximiliano Estevez | 2-6,2-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/04 13:00 | Guillermo Castaneda v Oscar M S Hirales | 3-6,6-0,5-2 |
| UTR Pro Tennis Series Manzanillo | 2021/08/03 13:00 | Guillermo Castaneda v Alan Sau Franco | 5-7,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/02 13:00 | Guillermo Castaneda v Edson A S Elizondo | 6-4,6-7,4-5 |
| ITF Mexico F3 | 2018/05/22 22:00 | Guillermo Castaneda v Pavel Krainik | 4-6,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/08 14:45 | Luciano Doria v Alan Sau Franco | 1-6,1-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/07 13:00 | Takeyasu Sekiguchi v Alan Sau Franco | 3-6,3-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/06 16:30 | Edson A S Elizondo v Alan Sau Franco | 3-6,1-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/05 14:30 | Oscar M S Hirales v Alan Sau Franco | 1-6,3-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/03 13:00 | Guillermo Castaneda v Alan Sau Franco | 5-7,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/02 14:30 | Alan Sau Franco v Maximiliano Estevez | 4-6,1-5 |
| UTR Pro Tennis Series Atlanta | 2021/07/15 12:00 | Cleeve Harper v Alan Sau Franco | 6-3,5-2 |
| UTR Pro Tennis Series Atlanta | 2021/07/13 19:30 | Lukas Greif v Alan Sau Franco | 6-4,6-2 |