Stadium: Court 1 Round: 25 Ground: Clay
| Piestany, Singles M-ITF-SVK-02A | 2019/05/08 11:25 | Semjan, Marek v Dubrivnyy, Artem | 3-6,5-7 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/04/25 09:00 | Semjan, Marek v Franco Emanuel Egea | 4-6,3-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/04/23 12:10 | Semjan, Marek v Aziz Ouakaa | 6-3,6-1 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/04/15 12:00 | Semjan, Marek v Boris Fassbender | 4-6,2-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/04/15 08:00 | Semjan, Marek v Vicentiu Andrei Niculescu | 6-2,6-3 |
| ITF - M15 Opatija | 2019/03/25 10:20 | Semjan, Marek v Michael Gloeckler | 7-6,7-6 |
| ITF - M15 Doha | 2019/03/13 13:55 | Semjan, Marek v Michiel de Krom | 3-6,2-6 |
| ITF - M15 Doha | 2019/03/12 14:50 | George Loffhagen v Semjan, Marek | 6-7,6-7 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/05/10 15:45 | Gonzalo Villanueva v Genaro Alberto Olivieri | 0-6,2-6 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/05/10 12:00 | Gonzalo Villanueva v Santiago Rodriguez Taverna | 6-4,6-1 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/05/08 17:25 | Gonzalo Villanueva v Ortiz, Oscar Gabriel | 6-2,6-3 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/05/02 14:00 | Gonzalo Villanueva v Thiago Agustin Tirante | 6-7,2-6 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/04/30 15:20 | Gonzalo Villanueva v Ignacio Monzon | 6-1,7-6 |
| Pinamar, Singles Qualifying M-ITF-ARG-03A | 2019/04/03 14:30 | Gonzalo Villanueva v Franco Agamenone | 6-1,3-6,3-6 |
| Pinamar, Singles Qualifying M-ITF-ARG-03A | 2019/03/30 14:00 | Galarza, Juan Ignacio v Gonzalo Villanueva | 6-2,6-1 |
| Pinamar, Singles Qualifying M-ITF-ARG-03A | 2019/03/29 13:00 | Gonzalo Villanueva v Juan Manuel Cerundolo | 6-2,6-1 |