Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF Qatar F6 | 2018/12/18 08:55 | Goncalo Oliveira v Schmitz, Constantin | 4-6,3-6 |
| ITF Qatar F6 | 2018/12/17 10:00 | Schmitz, Constantin v van Den Berg, Bart | 6-3,6-3 |
| Qatar F5, Simples | 2018/12/10 13:40 | Kobelt, Peter v Schmitz, Constantin | 6-2,6-7,6-1 |
| Qatar F5, Simples | 2018/12/09 12:00 | Keremedchiev, Ivailo v Schmitz, Constantin | 6-7,4-6 |
| ITF Qatar F4 | 2018/12/03 13:55 | Schmitz, Constantin v Niklas Schell | 4-6,3-6 |
| ITF Qatar F4 | 2018/12/02 14:55 | Schmitz, Constantin v Lavaud, Eric | 6-1,6-0 |
| ITF Germany F15 | 2018/10/09 11:00 | Binding, Jonathan v Schmitz, Constantin | 3-6,6-3,6-1 |
| ITF Germany F14 | 2018/10/05 11:45 | Cayre, Paul v Schmitz, Constantin | 6-3,6-2 |
| ITF Qatar F6 | 2018/12/19 14:50 | Frigerio, Lorenzo v Wang, Tak Khunn | 7-6,7-5 |
| ITF Qatar F6 | 2018/12/18 07:00 | Frigerio, Lorenzo v Dzhanashia, Shalva | 6-2,6-1 |
| ITF Qatar F6 | 2018/12/17 10:00 | Frigerio, Lorenzo v Niklas Schell | 6-1,7-5 |
| ITF Qatar F6 | 2018/12/16 12:00 | Frigerio, Lorenzo v Kaelin, Yanik | 6-4,6-2 |
| Qatar F5, Simples | 2018/12/12 13:35 | Frigerio, Lorenzo v Wang, Tak Khunn | 6-2,2-6,4-6 |
| Qatar F5, Simples | 2018/12/11 12:00 | Frigerio, Lorenzo v Zayed, Mousa Shanan | 6-1,6-0 |
| Qatar F5, Simples | 2018/12/10 12:00 | Frigerio, Lorenzo v Saraiva, Bernardo | 6-2,1-6,7-5 |
| Qatar F5, Simples | 2018/12/09 16:40 | Frigerio, Lorenzo v Niklas Schell | 6-3,6-2 |