Stadium: Court 6 Round: 62 Ground: Clay
| ITF M25 Meerbusch | 2021/04/11 14:00 | Rondoni, Pietro v Sascha Moeller | 6-2,6-1 |
| ITF - M15 Opatija | 2021/03/26 11:10 | Giovanni Fonio v Rondoni, Pietro | 6-3,6-3 |
| ITF - M15 Opatija | 2021/03/25 12:15 | Rondoni, Pietro v Timo Legout | 6-1,3-6,6-2 |
| ITF - M15 Opatija | 2021/03/24 11:20 | Ignacio Monzon v Rondoni, Pietro | 2-6,3-6 |
| ITF - M15 Rovinj | 2021/03/18 10:30 | David Pichler v Rondoni, Pietro | 6-4,6-2 |
| ITF - M15 Rovinj | 2021/03/17 10:00 | Rondoni, Pietro v Kalender, Admir | 7-5,6-4 |
| ITF - M15 Porec | 2021/03/14 08:55 | Filip Misolic v Rondoni, Pietro | 6-4,6-4 |
| ITF - M15 Porec | 2021/03/13 10:00 | Damien Wenger v Rondoni, Pietro | 4-6,5-7 |
| ITF M25 Meerbusch | 2021/04/11 14:00 | Born, Yannick Stephan v Dietel, Maximilian | 4-6,6-1,8-10 |
| ITF M15 Kamen | 2019/06/24 08:00 | Vadym Ursu v Dietel, Maximilian | 6-3,6-1 |
| ITF M15 Troisdorf | 2019/05/06 14:00 | Dietel, Maximilian v Link, Joel Vincent | 1-6,3-6 |
| ITF M15 Troisdorf | 2019/05/06 07:00 | Nitin Kumar Sinha v Dietel, Maximilian | 6-1,4-6,1-10 |
| ITF Germany F10 Qual | 2018/07/29 10:30 | Dietel, Maximilian v Maik Steiner | 0-6,0-6 |
| ITF France F15 | 2018/07/21 09:45 | Dietel, Maximilian v Bertimon, Charles | 0-6,2-6 |
| ITF Belgium F2 Qual | 2018/06/23 13:45 | Dietel, Maximilian v Planchard, Nicolas | 3-6,5-7 |