Stadium: Court10 Round: 25 Ground: Hardcourt outdoor
| ITF USA F28B | 2018/10/23 17:35 | Hernandez Serrano, Juan Alejandro v Yshai Oliel | 0-6,2-6 |
| ITF USA F28B | 2018/10/22 17:05 | Hernandez Serrano, Juan Alejandro v Rollins, Pierce | 6-3,6-1 |
| ITF USA F23 | 2018/08/16 14:00 | Hernandez Serrano, Juan Alejandro v Gomez, Alejandro | 6-7,3-6 |
| ITF USA F23 | 2018/08/15 14:00 | Hernandez Serrano, Juan Alejandro v Maxime Cressy | 7-6,2-6,6-3 |
| ITF USA F18 | 2018/06/28 14:00 | Andres Andrade v Hernandez Serrano, Juan Alejandro | 7-5,6-0 |
| ITF USA F18 | 2018/06/27 18:00 | Hernandez Serrano, Juan Alejandro v Callahan, Hunter | 6-2,6-2 |
| ITF Mexico F3 | 2018/05/21 17:00 | Gonzalez, Wilfredo v Hernandez Serrano, Juan Alejandro | 7-6,6-2 |
| ITF Mexico F2 | 2018/05/15 18:20 | Hernandez Serrano, Juan Alejandro v Diaz-Figueroa, Christopher | 6-3,5-7,3-6 |
| ITF USA F29 | 2018/10/27 16:30 | Grinvalds, Roberts v Timo Stodder | 3-6,6-4,3-6 |
| ITF Latvia F1 | 2018/08/02 10:40 | Slobodchikov, Ronald v Grinvalds, Roberts | 3-6,6-4,6-3 |
| ITF Latvia F1 | 2018/08/01 07:00 | Grinvalds, Roberts v Ivan Liutarevich | 6-1,6-1 |
| ITF Latvia F1 | 2018/07/31 10:00 | Soyfer, Daniel v Grinvalds, Roberts | 6-3,3-6,4-6 |
| ITF Latvia F1 | 2018/07/29 07:00 | Grinvalds, Roberts v Vaise, Tomas | 4-6,6-3,6-4 |
| ITF Latvia F1 | 2018/07/28 07:00 | Grinvalds, Roberts v Abou Khamis, Mohammad Khaled | 6-0,6-0 |
| ITF Lithuania F1 | 2018/07/25 11:55 | Vrzesinski, Robertas v Grinvalds, Roberts | 6-2,2-6,6-1 |
| ITF Lithuania F1 | 2018/07/24 13:25 | Grinvalds, Roberts v Joao Lucas Reis da Silva | 4-6,6-4,7-6 |