Stadium: Court McDonalds Round: 14 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2023/02/25 08:00 | Andrea Guerrieri v Robert Strombachs | 1-6,4-6 |
| Challenger Segovia | 2023/07/24 10:50 | Robert Strombachs v Luca Potenza | 7-6,3-6,6-7 |
| Challenger Segovia | 2023/07/23 13:10 | Robert Strombachs v Maxime Mora | 6-4,6-3 |
| Challenger Pozoblanco | 2023/07/16 17:00 | Robert Strombachs v Alberto Barroso Campos | 2-6,3-6 |
| ITF M25 Kassel | 2023/07/12 09:55 | Milan Welte v Robert Strombachs | 6-3,6-2 |
| Challenger Milan | 2023/07/02 12:05 | Lucio Carnevalle v Robert Strombachs | 7-5,7-6 |
| Challenger Poznan | 2023/06/18 08:30 | Robert Strombachs v Sebastian Gima | 3-6,5-7 |
| Challenger Perugia | 2023/06/11 12:45 | Renzo Olivo v Robert Strombachs | 6-4,6-1 |
| ITF M25 Cordoba | 2023/06/09 08:00 | Robert Strombachs v Georgii Kravchenko | 5-7,0-6 |
| Challenger Segovia | 2023/07/23 08:00 | Andrea Guerrieri v Ilya Snitari | 6-7,7-5,2-6 |
| ITF M15 Store | 2023/06/23 07:00 | Alexander Klintcharov v Andrea Guerrieri | 7-5,7-6 |
| ITF M15 Store | 2023/06/22 11:30 | Pietro Pampanin v Andrea Guerrieri | 5-7,2-6 |
| ITF M15 Store | 2023/06/21 14:15 | Sebastian Sorger v Andrea Guerrieri | 6-2,3-6,2-6 |
| ITF M15 Chieti | 2023/06/17 08:00 | Manuel Mazza v Andrea Guerrieri | 6-4,6-4 |
| ITF M15 Chieti | 2023/06/16 14:20 | Gianluca Di Nicola v Andrea Guerrieri | 1-6,7-6,4-6 |
| ITF M15 Chieti | 2023/06/14 08:00 | Leonardo Rossi v Andrea Guerrieri | 6-1,1-6,2-6 |
| ITF M15 Bucharest | 2023/05/26 09:35 | Cezar Cretu v Andrea Guerrieri | 6-3,6-1 |