Stadium: Hard 13 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Héraklion | 2019/05/14 10:00 | Bothwell, Peter v Kapiris, Stamatis | 6-3,6-4 |
| ITF - M15 Héraklion | 2019/05/10 07:00 | Bothwell, Peter v Pervolarakis, Michail | 4-6,6-7 |
| ITF - M15 Héraklion | 2019/05/09 07:00 | Bothwell, Peter v Kapiris, Stamatis | 6-2,6-3 |
| ITF - M15 Héraklion | 2019/05/08 07:00 | Bothwell, Peter v Stergiou, Ioannis | 6-3,6-3 |
| ITF - M15 Tbilisi | 2019/05/04 09:30 | Mark Whitehouse v Bothwell, Peter | 6-4,6-4 |
| ITF - M15 Tbilisi | 2019/05/03 06:00 | John Echeverria v Bothwell, Peter | 5-7,0-6 |
| ITF - M15 Tbilisi | 2019/05/02 09:10 | Shumeiko, Pavel v Bothwell, Peter | 6-7,6-3,2-6 |
| ITF - M15 Tbilisi | 2019/05/01 11:00 | Matuszewski, Piotr v Bothwell, Peter | 7-6,1-6,4-6 |
| 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 Poitiers | 2019/03/11 16:35 | Faivre, Pierre v Guenther, Valentin | 6-1,6-2 |
| ITF - M15 Poitiers | 2019/03/11 13:05 | Emilien Voisin v Guenther, Valentin | 1-6,6-7 |
| Oslo, Singles M-ITF-NOR-01A | 2019/03/05 09:00 | Guenther, Valentin v Mayer, Patrick | 1-6,6-3,9-11 |