Stadium: Court 4 Round: 46 Ground: Hardcourt outdoor
| Challenger Tiburon | 2018/09/22 18:50 | Alexander Ritschard v Gonzalez, Alejandro | 1-6,4-6 |
| Challenger Columbus | 2018/09/18 17:55 | Luke Saville v Gonzalez, Alejandro | 7-5,6-4 |
| Challenger Cary | 2018/09/13 19:40 | Gonzalez, Alejandro v Fratangelo, Bjorn | 7-6,5-7,4-6 |
| Challenger Cary | 2018/09/12 17:00 | Gonzalez, Alejandro v Ymer, Mikael | 4-6,6-3,6-4 |
| Challenger Cary | 2018/09/10 20:40 | Polansky, Peter v Gonzalez, Alejandro | 3-6,4-6 |
| Challenger Chicago | 2018/09/02 22:10 | Gonzalez, Alejandro v Roelofse, Ruan | 4-6,6-3,3-6 |
| Challenger Astana | 2018/07/17 05:55 | Youzhny, Mikhail v Gonzalez, Alejandro | 6-3,2-6,7-5 |
| Challenger Perugia Qual | 2018/07/08 08:00 | Gonzalez, Alejandro v Toledo Bague, Pol | 2-6,7-5,3-6 |
| Challenger Tiburon | 2018/09/22 18:20 | Vivero Gonzalez, Pablo v Kaichi Uchida | 4-6,6-4,6-4 |
| Challenger Columbus | 2018/09/15 22:20 | Hiltzik, Jared v Vivero Gonzalez, Pablo | 5-7,6-4,6-4 |
| Challenger Cary | 2018/09/08 16:00 | Strong Kirchheimer v Vivero Gonzalez, Pablo | 6-3,3-6,6-2 |
| Challenger Seville | 2018/09/01 08:00 | Zizou Bergs v Vivero Gonzalez, Pablo | 6-4,6-4 |
| Challenger Mallorca | 2018/08/26 11:15 | Gabashvili, Teimuraz v Vivero Gonzalez, Pablo | 7-5,6-1 |
| ITF Portugal F15 | 2018/08/17 13:05 | Sora Fukuda v Vivero Gonzalez, Pablo | 7-6,2-6,6-4 |
| ITF Portugal F15 | 2018/08/16 10:40 | Alexander Donski v Vivero Gonzalez, Pablo | 3-6,6-7 |
| ITF Portugal F15 | 2018/08/14 10:40 | Bothwell, Peter v Vivero Gonzalez, Pablo | 2-6,7-6,3-6 |