Stadium: Court 1 Round: 45 Ground: Clay
| ITF M15 Marburg | 2019/07/08 09:00 | Ma, William v Hellfritsch, Lucas | 3-6,7-6,3-10 |
| ITF M15 Marburg | 2019/07/08 08:00 | van Den Berg, Bart v Hellfritsch, Lucas | 6-1,7-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/01 07:30 | Hellfritsch, Lucas v Weng, Jing Long | 2-6,1-6 |
| ITF M15 Alkmaar | 2019/06/26 16:50 | Jesper De Jong v Hellfritsch, Lucas | 6-3,6-4 |
| ITF M15 Alkmaar | 2019/06/25 09:00 | Hellfritsch, Lucas v Matthew Dellavedova | 0-6,6-0,10-2 |
| ITF M15 Alkmaar | 2019/06/24 13:00 | Hellfritsch, Lucas v Bosnjak, Mislav | 6-4,4-6,10-6 |
| Kaltenkirchen, Singles Qualifying M-ITF-GER-05A | 2019/06/10 08:00 | Hellfritsch, Lucas v Remy Bertola | 1-6,4-6 |
| ITF - M15 Antalya | 2019/05/21 07:15 | Hellfritsch, Lucas v Hiramatsu, Shinnosuke | 4-6,0-6 |
| Prijedor, Singles M-ITF-BIH-04A | 2019/05/07 10:00 | Sanchez, Gabriel v Oreskovic, Z. | 0-6,3-6 |
| ITF - M15 Bagnoles-de-l'Orne | 2019/01/07 12:10 | Sanchez, Gabriel v Hamou, Maxime | 0-6,1-6 |
| ITF Egypt F31 | 2018/12/09 07:30 | Sanchez, Gabriel v Bassel, Hassan | 6-3,3-6,3-6 |
| ITF Egypt F31 | 2018/12/08 10:00 | Sanchez, Gabriel v Elkamony, Anwar | 6-1,6-0 |
| ITF Egypt F30 | 2018/12/02 09:00 | Gaber, Adham v Sanchez, Gabriel | 6-2,6-2 |
| ITF Egypt F30 | 2018/12/01 09:00 | Portmann, Kevin v Sanchez, Gabriel | 0-6,0-6 |
| ITF Turkey F38 | 2018/11/25 07:00 | Korolev, Vladimir v Sanchez, Gabriel | 6-1,6-2 |
| ITF Turkey F37 | 2018/11/19 07:30 | Sanchez, Gabriel v Pointon, Samuel | 2-6,0-6 |