Stadium: Court 9 Round: 25 Ground: Hardcourt outdoor
| ITF USA F21 Qual | 2018/07/31 17:05 | Chang, Jonathan v Brymer, Gage | 6-4,6-2 |
| ITF USA F21 Qual | 2018/07/30 15:00 | Chang, Jonathan v Blumenberg, Alex | 6-2,6-1 |
| ITF USA F21 Qual | 2018/07/28 17:00 | Chang, Jonathan v Metz, David | 6-2,6-0 |
| ITF USA F20 | 2018/07/25 17:20 | Chang, Jonathan v Petros Chrysochos | 0-6,6-3,4-6 |
| ITF USA F20 | 2018/07/24 20:40 | Chang, Jonathan v Brooksby, Jenson | 6-4,6-4 |
| ITF USA F20 Qual | 2018/07/23 16:50 | Chang, Jonathan v Cozbinov, Alexander | 6-3,6-2 |
| ITF USA F20 Qual | 2018/07/22 16:30 | Chang, Jonathan v Joshi, Abhijeet | 6-1,6-3 |
| ITF USA F20 Qual | 2018/07/21 15:00 | Chang, Jonathan v Johnson, Kyle | 6-2,6-2 |
| ITF USA F20 | 2018/07/25 16:00 | Dougaz, Aziz v Joyce, Martin | 7-5,7-6 |
| ITF USA F20 | 2018/07/24 15:00 | Matias Soto v Joyce, Martin | 3-6,4-6 |
| ITF USA F19B | 2018/07/17 16:25 | Joyce, Martin v AL Allaf, Kareem | 6-3,4-6,6-7 |
| Winnetka, USA | 2018/07/09 19:20 | Ernesto Escobedo v Joyce, Martin | 3-6,7-6,6-3 |
| ITF USA F38 | 2017/11/21 21:30 | Joyce, Martin v Dunbar, Jacob | 2-6,5-7 |
| Knoxville, USA, Qualifying | 2017/11/05 15:00 | Joyce, Martin v Karue Sell | 3-6,3-6 |
| Challenger Columbus | 2017/09/20 16:35 | Joyce, Martin v Ward, Alexander | 6-4,2-6,3-6 |
| Challenger Columbus | 2017/09/19 18:55 | Gunneswaran, Prajnesh v Joyce, Martin | 6-7,6-7 |