| UTR Pro - Arkansas | 2023/09/20 23:04 | Volodymyr Zakharov v Thiago Pernas | 1-6,4-5 |
| UTR Pro - Arkansas | 2023/09/20 17:00 | Evan Bynoe v Thiago Pernas | 7-6,5-2 |
| UTR Pro - Arkansas | 2023/09/20 17:00 | Volodymyr Zakharov v Alexander Okonkwo | 1-6,1-6 |
| UTR Pro - Arkansas | 2023/09/18 19:30 | Alexander Okonkwo v Bozo Barun | 6-4,7-5 |
| UTR Pro - Easton | 2023/04/08 08:00 | Yujiro Onuma v Alexander Okonkwo | 7-6,6-0 |
| UTR Pro - Easton | 2023/04/06 10:00 | Alexander Okonkwo v Ali Habib | 5-7,6-2,6-3 |
| UTR Pro - Easton | 2023/04/05 07:00 | Alexander Okonkwo v Michael Shaw | 5-7,6-0,2-6 |
| UTR Pro - Easton | 2023/04/04 11:30 | David Quayle v Alexander Okonkwo | 6-4,6-0 |
| UTR Pro - Easton | 2023/04/03 08:30 | Hien Q H Pham v Alexander Okonkwo | 6-7,3-6 |
| UTR Pro - Cardiff | 2023/02/26 10:30 | William Mclennaghan v Alexander Okonkwo | 7-6,6-3 |