| UTR Pro Tennis Series California | 2021/12/28 21:30 | Hugo Hashimoto v Guilherme W Osorio | 6-4,6-2 |
| UTR Pro Tennis Series California | 2021/12/27 20:02 | Emin Torlic v Guilherme W Osorio | 1-6,0-6 |
| UTR Pro Tennis Series California | 2021/12/26 22:30 | Jacob Bullard v Guilherme W Osorio | 5-7,1-6 |
| ITF M15 Idanha-a-Nova | 2019/07/09 09:00 | Guilherme W Osorio v Sean Hodkin | 6-7,6-4,4-10 |
| ITF M15 Idanha-a-Nova | 2019/07/08 09:00 | Guilherme W Osorio v Eduardo LDR De Almeida | 6-1,6-0 |
| ITF USA F24 | 2018/09/12 16:30 | Guilherme W Osorio v Keegan Smith | 6-7,3-6 |
| ITF Portugal F14 | 2018/08/09 10:30 | Guilherme W Osorio v Frederico Ferreira Silva | 0-6,2-6 |
| ITF Portugal F14 | 2018/08/07 11:00 | Mark Whitehouse v Guilherme W Osorio | 6-7,6-4,4-6 |
| UTR Pro Tennis Series California | 2021/12/28 17:00 | Brandon Holt v Sacchitt Sharrma | 6-0,6-2 |
| UTR Pro Tennis Series California | 2021/12/27 16:00 | Lawee Sherif v Sacchitt Sharrma | 2-6,2-6 |
| UTR Pro Tennis Series California | 2021/12/26 19:00 | Sacchitt Sharrma v Chase Thompson | 6-4,6-3 |