Stadium: Hard Court 2 Round: 25 Ground: Hardcourt outdoor
| Egypt F14, Singles Qualifying | 2018/04/19 08:00 | Guenther, Valentin v Vivero Gonzalez, Pablo | 2-6,6-7 |
| ITF - M15 Héraklion | 2019/05/22 13:05 | Cayre, Paul v Guenther, Valentin | 7-6,6-2 |
| ITF - M15 Héraklion | 2019/05/20 13:00 | Guenther, Valentin v Adam Jones | 7-6,6-0 |
| ITF - M15 Héraklion | 2019/05/16 08:20 | Bothwell, Peter v Guenther, Valentin | 6-2,6-2 |
| ITF - M15 Héraklion | 2019/05/15 11:45 | Boris Pokotilov v Guenther, Valentin | 6-7,6-3,3-6 |
| ITF - M15 Héraklion | 2019/05/13 07:00 | Guenther, Valentin v Eminefendic, Ervin Haris | 6-4,6-2 |
| ITF - M15 Héraklion | 2019/05/09 07:00 | Glasspool, Lloyd v Guenther, Valentin | 7-6,6-4 |
| ITF - M15 Héraklion | 2019/05/07 10:00 | Guenther, Valentin v Addison, Aaron | 6-3,7-6 |
| Bolton, Qualifications Simples M-ITF-GBR-03A | 2019/04/01 08:00 | Farmer, Elliott v Guenther, Valentin | 6-3,7-5 |
| ITF - M15 Héraklion | 2019/05/22 09:30 | Vivero Gonzalez, Pablo v Gabriel Donev | 4-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2019/03/29 08:00 | Kacper Zuk v Vivero Gonzalez, Pablo | 6-4,6-3 |
| ITF - M15 Sharm El Sheikh | 2019/03/28 08:00 | Giorgio Ricca v Vivero Gonzalez, Pablo | 0-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2019/03/27 11:05 | Vivero Gonzalez, Pablo v Jacopo Berrettini | 6-4,6-4 |
| ITF - M15 Sharm El Sheikh | 2019/03/24 08:00 | Kacper Zuk v Vivero Gonzalez, Pablo | 7-6,6-3 |
| ITF - M15 Sharm El Sheikh | 2019/03/23 08:00 | Vivero Gonzalez, Pablo v Robert Strombachs | 6-4,6-4 |
| ITF - M15 Sharm El Sheikh | 2019/03/22 08:00 | Botic Van De Zandschulp v Vivero Gonzalez, Pablo | 3-6,5-7 |
| ITF - M15 Sharm El Sheikh | 2019/03/21 09:20 | Adrian Bodmer v Vivero Gonzalez, Pablo | 3-6,2-6 |