Stadium: Center Round: 28 Ground: Hardcourt outdoor
| ITF M15 Los Angeles | 2023/06/23 20:00 | Quinn Vandecasteele v Stefan Dostanic | 6-3,6-1 |
| ITF M15 Los Angeles | 2023/06/22 18:00 | Nathan Ponwith v Quinn Vandecasteele | 3-6,3-6 |
| ITF M15 Los Angeles | 2023/06/21 19:35 | Lorenzo Claverie v Quinn Vandecasteele | 6-4,4-6,3-6 |
| ITF M15 Los Angeles | 2023/06/20 17:00 | Giacomo Revelli v Quinn Vandecasteele | 4-6,6-4,8-10 |
| ITF M15 San Diego | 2023/06/16 16:50 | Blaise Bicknell v Quinn Vandecasteele | 4-6,6-3,6-3 |
| ITF M15 San Diego | 2023/06/15 18:35 | Quinn Vandecasteele v A.J Catanzariti | 7-6,6-3 |
| ITF M15 San Diego | 2023/06/14 17:00 | Herbert Jody Maginley v Quinn Vandecasteele | 2-6,3-6 |
| ITF M15 San Diego | 2023/06/13 17:30 | Hudson Rivera v Quinn Vandecasteele | 6-3,4-6,2-10 |
| ITF M15 Los Angeles | 2023/06/23 21:45 | Ryan Seggerman v Kareem Allaf | 7-6,6-1 |
| ITF M15 Los Angeles | 2023/06/22 18:00 | Ryan Seggerman v Cash Hanzlik | 6-3,6-3 |
| ITF M15 Los Angeles | 2023/06/22 01:25 | Tristan Boyer v Ryan Seggerman | 4-6,4-6 |
| ITF M15 Los Angeles | 2023/06/20 17:00 | Ryan Seggerman v Joe Tyler | 7-5,6-4 |
| ITF M15 San Diego | 2023/06/15 20:40 | Lorenzo Claverie v Ryan Seggerman | 6-3,6-7,7-6 |
| ITF M15 San Diego | 2023/06/14 17:00 | Ryan Seggerman v Bryce Nakashima | 7-6,6-7,6-2 |
| ITF M15 San Diego | 2023/06/13 17:30 | Rudy Quan v Ryan Seggerman | 3-6,7-6,4-10 |
| ITF M15 San Diego | 2023/06/06 18:30 | Gianni Ross v Ryan Seggerman | 7-6,6-4 |