Stadium: Court 22 Round: 60 Ground: Clay
| ITF USA F30 | 2018/11/04 16:00 | Gomez Montesa, Sergio v Chase Ferguson | 3-6,4-6 |
| ITF USA F30 | 2018/11/03 16:00 | Gomez Montesa, Sergio v Alan Magadan | 6-0,6-1 |
| ITF Spain F21 Qual | 2018/07/28 07:00 | Trapeznikov, Zakhar v Gomez Montesa, Sergio | 4-6,6-4,6-2 |
| ITF Spain F20 Qual | 2018/07/22 08:30 | Gomez Montesa, Sergio v Perret, Loic | 6-7,7-6,2-6 |
| ITF Spain F20 Qual | 2018/07/21 08:30 | Gomez Montesa, Sergio v Hans Albert Schubert | 6-1,6-7,7-6 |
| ITF Spain F5 | 2018/02/10 13:30 | Andreu Garcia, Francisco v Gomez Montesa, Sergio | 2-6,6-1,6-0 |
| ITF Spain F1 | 2018/01/13 09:00 | Gomez Montesa, Sergio v Grace, Samy | 2-6,7-5,6-7 |
| ITF Spain F33 | 2017/10/07 11:30 | Gomez Montesa, Sergio v Batlle, Carles | 6-7,4-6 |
| ITF USA F21 Qual | 2018/07/30 15:00 | Boris Kozlov v Cozbinov, Alexander | 6-4,6-7,2-6 |
| ITF USA F20 Qual | 2018/07/21 15:00 | Boris Kozlov v Soderlund, Carl | 3-6,1-6 |
| ITF USA F19B Qual | 2018/07/15 15:00 | Perez, Alfredo v Boris Kozlov | 6-3,6-3 |
| ITF USA F19 Qual | 2018/07/01 16:00 | Spec, Matic v Boris Kozlov | 6-2,6-4 |
| ITF USA F18 | 2018/06/25 19:30 | Arconada, Jordi v Boris Kozlov | 6-1,6-3 |
| ITF USA F16 | 2018/06/16 19:00 | Naser, Javier v Boris Kozlov | 6-3,4-6,7-6 |
| ITF USA F12 | 2018/04/22 17:00 | Rowland Phillips v Boris Kozlov | 6-3,6-2 |
| ITF USA F11 | 2018/04/13 13:30 | Boris Kozlov v Ahren Moonga, Eric | 2-6,6-4,4-6 |