Stadium: Court 4 - CC Round: 62 Ground: Hardcourt outdoor
| ITF USA F27 | 2018/10/06 18:00 | Chenhe Li v Guido Marson | 6-4,6-2 |
| ITF Italy F22 Qual | 2018/08/06 10:35 | Luca Narcisi v Guido Marson | 7-5,6-3 |
| ITF Italy F21 Qual | 2018/07/28 12:25 | Gianmarco Ferrari v Guido Marson | 6-4,6-2 |
| ITF Italy F20 Qual | 2018/07/22 13:00 | Emiliano Maggioli v Guido Marson | 6-4,6-2 |
| ITF Italy F20 Qual | 2018/07/21 07:30 | Giuseppe La Vela v Guido Marson | 6-7,5-7 |
| ITF Egypt F14 | 2018/04/18 08:00 | Guido Marson v Michel Vernier | 1-6,3-6 |
| ITF Egypt F13 | 2018/04/08 10:30 | Joy Vigani v Guido Marson | 6-1,6-4 |
| ITF Egypt F13 | 2018/04/07 12:00 | Antonio P Neto v Guido Marson | 1-6,1-6 |
| ITF USA F28 | 2018/10/14 15:00 | Alejandro Vedri Asensi v Jonathan Chang | 2-6,1-6 |
| ITF USA F28 | 2018/10/13 17:30 | Jonathan Sorbo v Jonathan Chang | 0-6,2-6 |
| ITF USA F27 | 2018/10/10 19:00 | Jonathan Chang v Ryan Peniston | 0-6,4-6 |
| ITF USA F27 | 2018/10/08 16:50 | Tim Ruehl v Jonathan Chang | 1-6,6-7 |
| ITF USA F26 Qual | 2018/09/23 17:00 | Jonathan Chang v Robert Kelly | 2-6,2-6 |
| ITF USA F26 Qual | 2018/09/22 16:30 | Jonathan Chang v Jonathan Sorbo | 6-2,6-1 |
| Challenger Columbus | 2018/09/15 17:00 | Ricardo Rodriguez-Pace v Jonathan Chang | 6-4,6-7,6-2 |
| ITF USA F21 | 2018/08/01 18:55 | Jonathan Chang v Martin Joyce | 6-2,3-6,2-6 |