Stadium: Court 2 Round: 54 Ground: Clay
| ITF M25 Klosters | 2021/06/20 07:00 | Luca Castelnuovo v Nico Jaeger | 4-6,6-3,11-9 |
| ITF M15 Gaiba | 2021/06/08 13:35 | Luca Castelnuovo v Osgar O'Hoisin | 3-6,7-5,8-10 |
| ITF M15 Gaiba | 2021/06/07 10:00 | Luca Castelnuovo v Gregorio De Gasper | 6-4,6-4 |
| ITF M15 Kouvola | 2021/05/28 07:15 | Luca Castelnuovo v Naoki Tajima | 3-6,2-6 |
| ITF M15 Kouvola | 2021/05/27 11:25 | Luca Castelnuovo v Simonas Zukauskas | 6-1,6-3 |
| ITF M15 Kouvola | 2021/05/26 14:40 | Luca Castelnuovo v Roni Mikael Hietaranta | 6-3,4-6,6-3 |
| ITF M15 Tbilisi | 2021/05/18 07:00 | Yurii Dzhavakian v Luca Castelnuovo | 7-6,0-6,7-6 |
| ITF M15 Jerusalem | 2021/05/12 08:15 | Edan Leshem v Luca Castelnuovo | 7-5,7-5 |
| ITF M25 Klosters | 2021/06/20 07:00 | Moritz Trocker v Leopold Zima | 2-6,2-6 |
| ITF M15 Genova | 2021/06/17 15:50 | Johan Sebastien Tatlot v Leopold Zima | 6-0,6-2 |
| ITF M15 Genova | 2021/06/16 17:45 | Alessandro Ceppellini v Leopold Zima | 6-4,3-6,2-6 |
| ITF M15 Genova | 2021/06/15 08:55 | Mirko Martinez v Leopold Zima | 5-7,4-6 |
| ITF M15 Genova | 2021/06/14 07:00 | Leopold Zima v Nicolo Turchetti | 6-1,4-6,10-7 |
| ITF M15 Troisdorf | 2021/05/10 11:00 | Leopold Zima v Yannik Steinegger | 2-6,6-7 |
| ITF M15 Troisdorf | 2021/05/09 13:00 | Leopold Zima v Julien De Cuyper | 6-4,6-4 |
| ITF M15 Antalya | 2021/04/25 07:00 | Michel Vernier v Leopold Zima | 4-6,7-6,10-4 |