Stadium: Court 3 Round: 54 Ground: Clay
| ITF M15 Telavi | 2019/07/15 06:00 | Ruben Busch v Viktor Nikitin | 2-6,3-6 |
| ITF M15 Antalya | 2019/03/11 07:15 | Nitin Kumar Sinha v Ruben Busch | 7-6,6-0 |
| ITF M15 Antalya | 2019/03/04 08:00 | Mircea-Alexandru Jecan v Ruben Busch | 6-0,6-0 |
| ITF Spain F24 | 2018/08/19 16:00 | Jaime Fermosell v Ruben Busch | 6-0,7-6 |
| ITF Spain F24 | 2018/08/18 09:00 | Hector B Martinez v Ruben Busch | 6-7,4-6 |
| ITF Spain F23 | 2018/08/11 08:30 | Chinmaya Dev Chauhan v Ruben Busch | 6-2,6-2 |
| ITF Spain F21 Qual | 2018/07/28 09:15 | Ruben Busch v Jack Gibbens | 2-6,4-6 |
| ITF Spain F19 Qual | 2018/07/14 07:30 | Gianni Ross v Ruben Busch | 6-0,6-2 |
| ITF M15 Las Palmas | 2019/05/07 09:30 | Joan B B Isern v Jaume Pla Malfeito | 2-6,3-6 |
| ITF M15 Las Palmas | 2019/05/01 10:15 | Joan B B Isern v Carlos Lopez Montagud | 3-6,2-6 |
| ITF M15 Las Palmas | 2019/04/30 08:30 | Joan B B Isern v Pol Fernandez | 7-5,6-3 |
| ITF M15 Las Palmas | 2019/04/29 11:00 | Keivon Tabrizi v Joan B B Isern | 2-6,3-6 |
| ITF M15 Palmanova | 2019/01/28 10:45 | Jakob Sude v Joan B B Isern | 6-4,6-1 |
| ITF M15 Palmanova | 2019/01/22 10:00 | Jakob Sude v Joan B B Isern | 6-3,6-2 |
| ITF M15 Palmanova | 2019/01/21 13:30 | Joan B B Isern v Jakob Johansson-Holm | 6-4,6-4 |
| ITF M15 Manacor | 2019/01/15 08:30 | Joan B B Isern v Benjamin Winter Lopez | 4-6,2-6 |