Stadium: Center Court 1 Round: 45 Ground: Clay
| ITF M25 Bolzano | 2019/07/29 09:30 | Andrea Guerrieri v Patric Prinoth | 6-1,6-4 |
| ITF M25 Casinalbo | 2019/07/08 13:00 | Virgili, Adelchi v Andrea Guerrieri | 6-4,6-3 |
| ITF M25 Casinalbo | 2019/07/08 07:00 | Speziali, Maurizio v Andrea Guerrieri | 6-4,5-7,7-10 |
| Cuneo, Singles Qualifying M-ITF-ITA-12A | 2019/07/03 09:30 | Remy Bertola v Andrea Guerrieri | 6-3,6-0 |
| ITF M25 Arlon | 2019/06/26 09:50 | Bovy, Arnaud v Andrea Guerrieri | 6-3,6-4 |
| ITF M25 Arlon | 2019/06/25 09:55 | Andrea Guerrieri v Nincevic, Frane | 7-6,6-1 |
| ITF M25 Arlon | 2019/06/24 11:15 | Andrea Guerrieri v Hoeveler, Leon | 6-4,6-1 |
| Reggio Emilia, Singles Qualifying M-ITF-ITA-11A | 2019/06/02 14:00 | Andrea Guerrieri v Rondoni, Pietro | 4-6,4-6 |
| ITF M25 Bolzano | 2019/07/29 09:30 | Greif, Jonas v Rieder, Horst | 6-7,3-6 |
| ITF M15 Casablanca | 2019/07/24 09:00 | Carr, Simon v Rieder, Horst | 2-6,6-4,6-3 |
| ITF M15 Casablanca | 2019/07/22 13:30 | Feitt, Franco v Rieder, Horst | 4-6,4-6 |
| Tanger, Singles M-ITF-MAR-01A | 2019/07/15 13:30 | Rieder, Horst v Muniz Hidalgo, Antonio | 1-6,4-6 |
| Tanger, Singles M-ITF-MAR-01A | 2019/07/15 09:00 | Rieder, Horst v Stamoulos, Ioannis | 6-4,6-4 |
| ITF M15 Telfs | 2019/07/08 07:30 | Shcherba, Vitalii v Rieder, Horst | 6-4,4-6,10-7 |
| Netanya, Singles Qualifying M-ITF-ISR-03A | 2019/06/19 13:05 | Vladyslav Orlov v Rieder, Horst | 6-2,6-4 |
| Netanya, Singles Qualifying M-ITF-ISR-03A | 2019/06/18 06:30 | Rieder, Horst v Bierman, Rikhardt | 6-4,6-3 |