Stadium: Court 3 Round: 62
| ITF USA F27 | 2018/10/06 15:00 | Mcmann, Conner v Rosensteel, Christopher | 6-2,6-4 |
| USA F26, Singles Qualifying | 2018/09/21 21:30 | Rosensteel, Christopher v Mohanty, Arsav | 6-4,5-7,6-1 |
| ITF USA F25 | 2018/09/15 20:30 | Moser, Jeremy v Rosensteel, Christopher | 6-3,6-2 |
| ITF USA F24 | 2018/09/07 20:00 | Rosensteel, Christopher v Ye Cong Mo | 3-6,0-6 |
| ITF Canada F6 | 2018/09/01 15:00 | Shropshire, Samuel v Rosensteel, Christopher | 6-4,6-2 |
| ITF USA F16 | 2018/06/16 19:00 | Lucas Renard v Rosensteel, Christopher | 6-4,5-7,6-0 |
| ITF USA F14 | 2018/06/09 14:00 | Rosensteel, Christopher v Lagaev, Nick | 3-6,7-5,4-6 |
| ITF USA F40 Qual | 2017/12/03 18:00 | Rosensteel, Christopher v Mas de Ugarte, Jordi | 6-7,3-6 |
| ITF USA F28 | 2018/10/13 17:30 | Naoki Nakagawa v O'Jon, Ian | 6-4,6-2 |
| ITF USA F27 | 2018/10/06 15:00 | Kohen, Alan v O'Jon, Ian | 6-4,6-2 |
| ITF Belgium F3 Qual | 2018/07/01 08:00 | Dermiens, Guillaume v O'Jon, Ian | 6-2,6-2 |
| ITF Belgium F3 Qual | 2018/06/30 07:30 | Borms, Stefan v O'Jon, Ian | 2-6,1-6 |
| ITF Belgium F2 Qual | 2018/06/23 15:25 | Sudzum, Marcel Marlon v O'Jon, Ian | 6-2,6-4 |
| ITF Belgium F1 Qual | 2018/06/17 11:00 | Yann Marti v O'Jon, Ian | 6-1,6-1 |
| ITF Belgium F1 Qual | 2018/06/16 12:00 | O'Jon, Ian v Vigelle, Teodor | 6-0,6-0 |
| USA F7, Singles Qualifying | 2017/02/10 15:00 | O'Jon, Ian v Ali Mutawa, Jabor Mohammed | 4-6,0-6 |