Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Decatur | 2023/08/02 21:50 | Rafael Tosetto v Osgar O'Hoisin | 6-4,6-2 |
| ITF M25 Edwardsville | 2023/07/26 21:20 | Ozan Baris v Osgar O'Hoisin | 5-7,7-6,6-1 |
| ITF - M25 Santo Domingo | 2023/06/28 16:50 | Osgar O'Hoisin v Darian King | 6-7,2-6 |
| ITF M15 South Bend | 2023/06/21 21:55 | Connor Bruce v Osgar O'Hoisin | 4-6,6-3,6-2 |
| ITF - M15 Monastir | 2023/05/24 08:30 | Osgar O'Hoisin v Nicolas Jadoun | 3-6,6-7 |
| ITF - M15 Monastir | 2023/05/17 08:25 | Osgar O'Hoisin v Matija Pecotic | 2-6,6-7 |
| ITF - M25 Nottingham | 2023/05/03 12:55 | Osgar O'Hoisin v Jules Marie | 2-6,3-6 |
| ITF M15 Tacarigua | 2023/04/27 18:00 | Osgar O'Hoisin v Broville, Maxence | 6-3,4-6,0-6 |
| ITF M15 Pittsburgh | 2023/07/27 20:30 | Seelig, Kyle v A.J Catanzariti | 7-6,6-7,6-4 |
| ITF M15 Pittsburgh | 2023/07/26 14:00 | A.J Catanzariti v Preston Brown | 6-3,6-4 |
| Rochester, Singles M-ITF-USA-19A | 2023/07/22 16:00 | Ignacio Monzon v A.J Catanzariti | 7-6,6-7,6-1 |
| Rochester, Singles M-ITF-USA-19A | 2023/07/21 19:00 | Nicholas Heng v A.J Catanzariti | 3-6,4-6 |
| Rochester, Singles M-ITF-USA-19A | 2023/07/20 17:00 | Preston Brown v A.J Catanzariti | 1-6,6-3,3-6 |
| Rochester, Singles M-ITF-USA-19A | 2023/07/19 19:55 | Connor Krug v A.J Catanzariti | 5-7,5-7 |
| ITF M15 South Bend | 2023/06/21 15:00 | A.J Catanzariti v Maginley, J. | 6-7,6-7 |
| ITF - M15 San Diego | 2023/06/15 18:35 | Quinn Vandecasteele v A.J Catanzariti | 7-6,6-3 |