Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2019/01/31 11:40 | Corentin Denolly v Guenther, Valentin | 6-3,6-4 |
| ITF - M15 Monastir | 2019/01/30 09:00 | Ivanov, Simon Anthony v Guenther, Valentin | 5-7,6-1,2-6 |
| ITF - M15 Monastir | 2019/01/28 10:00 | Guenther, Valentin v Gostincar, Domen | 6-4,3-6,10-6 |
| ITF - M15 Monastir | 2019/01/21 08:30 | Guenther, Valentin v Gostincar, Domen | 6-2,1-6,7-10 |
| ITF Qatar F6 | 2018/12/18 07:00 | Zhurbin, Alexander v Guenther, Valentin | 3-6,6-3,6-2 |
| ITF Qatar F6 | 2018/12/17 14:35 | Cutuli, Domenico v Guenther, Valentin | 5-7,0-6 |
| ITF Qatar F6 | 2018/12/16 12:00 | Damian, Mihaita Daniel v Guenther, Valentin | 1-6,1-6 |
| Qatar F5, Simples | 2018/12/10 13:55 | Antoine Bellier v Guenther, Valentin | 4-6,6-1,6-2 |
| ITF Dominican Republic F3 | 2018/12/08 13:00 | Mohanty, Arnav v Mendez, Matthew | 2-6,2-6 |
| ITF Dominican Republic F2 | 2018/12/01 13:00 | Juan Sebastian Gomez v Mohanty, Arnav | 6-0,6-4 |
| ITF Dominican Republic F1 | 2018/11/24 16:00 | Fortin, Michel-Alexandre v Mohanty, Arnav | 6-3,7-6 |
| USA F26, Singles Qualifying | 2018/09/22 16:30 | Beiler, Mason v Mohanty, Arnav | 6-4,6-3 |
| ITF USA F24 | 2018/09/08 17:30 | Mohanty, Arnav v Ventre, Alessandro-Damiano | 5-7,7-6,2-6 |
| ITF USA F15 Qual | 2018/06/17 14:00 | Mohanty, Arnav v Hamilton, Grey | 1-6,2-6 |
| ITF USA F15 Qual | 2018/06/16 15:30 | Gardner, Kevin v Mohanty, Arnav | 2-6,0-6 |
| Egypt F5, Singles Qualifying | 2018/02/10 12:00 | Mohanty, Arnav v Roncalli, Simone | 1-6,2-6 |