Stadium: Court Central Round: 27 Ground: Hardcourt indoor
| Drummondville, Canada | 2019/03/14 14:00 | Quiroz, Roberto v Viola, Matteo | 6-4,3-6,4-6 |
| Drummondville, Canada | 2019/03/13 15:25 | Skander Mansouri v Viola, Matteo | 6-2,4-6,4-6 |
| Challenger - Pau | 2019/02/25 14:30 | Viola, Matteo v Nino Serdarusic | 3-6,4-6 |
| Bergamo, Italy | 2019/02/18 12:20 | Viola, Matteo v Ignatik, Uladzimir | 4-6,4-6 |
| Challenger Budapest | 2019/02/04 18:55 | Pavel Kotov v Viola, Matteo | 1-6,6-4,6-3 |
| Challenger Da Nang | 2019/01/12 04:30 | Granollers, Marcel v Viola, Matteo | 6-2,6-0 |
| Challenger Da Nang | 2019/01/11 06:00 | Thai-Son Kwiatkowski v Viola, Matteo | 7-5,6-7,2-6 |
| Challenger Da Nang | 2019/01/10 05:00 | Yan Bai v Viola, Matteo | 3-6,6-7 |
| Drummondville, Canada | 2019/03/14 15:40 | Millot, Vincent v de Greef, Arthur | 4-6,7-5,3-6 |
| Drummondville, Canada | 2019/03/13 14:00 | Ulises Blanch v de Greef, Arthur | 6-7,3-6 |
| Challenger - Pau | 2019/02/27 19:50 | de Greef, Arthur v Darcis, Steve | 6-7,5-7 |
| Bergamo, Italy | 2019/02/23 17:30 | de Greef, Arthur v Marcora, Roberto | 6-7,6-4,1-6 |
| Bergamo, Italy | 2019/02/22 15:00 | Vanni, Luca v de Greef, Arthur | 6-7,4-6 |
| Bergamo, Italy | 2019/02/21 15:10 | de Greef, Arthur v Crepatte, Baptiste | 6-2,6-4 |
| Bergamo, Italy | 2019/02/20 12:10 | de Greef, Arthur v Petrovic, Danilo | 6-3,6-4 |
| Coupe Davis | 2019/02/01 18:00 | Thiago Monteiro v de Greef, Arthur | 6-3,6-2 |