| UTR Pro Tennis Series California | 2021/05/23 19:30 | Hugo Hashimoto v Hadigian, Eric | 3-6,6-4,3-6 |
| UTR Pro Tennis Series California | 2021/05/23 20:30 | Middleton, Jett v Barretto, Paul | 7-5,5-4 |
| UTR Pro Tennis Series California | 2021/05/19 21:30 | Lopez, Luis Humberto v Barretto, Paul | 5-7,7-5,3-1 |
| UTR Pro Tennis Series California | 2021/05/18 19:30 | Isaiah Strode v Barretto, Paul | 6-3,7-6 |
| ITF Netherlands F1 | 2018/06/27 10:45 | Ryan Nijboer v Barretto, Paul | 6-4,7-6 |
| ITF Netherlands F1 Qual | 2018/06/25 09:00 | Barretto, Paul v van Der Horst, Tim | 6-1,6-1 |
| ITF Netherlands F1 Qual | 2018/06/24 09:00 | Dijkhuizen, Marc v Barretto, Paul | 3-6,2-6 |
| ITF Netherlands F1 Qual | 2018/06/23 08:00 | Barretto, Paul v Molloy, Jack | 6-3,6-2 |
| ITF Belgium F1 Qual | 2018/06/16 08:00 | Daniel De Jonge v Barretto, Paul | 6-3,6-4 |