Stadium: Indoor 1 Round: 26 Ground: Hardcourt outdoor
| 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 M15 Ramat Hasharon | 2021/05/06 07:00 | Zane Khan v Luca Castelnuovo | 6-3,6-2 |
| ITF M15 Ramat Hasharon | 2021/05/05 11:05 | Gilad Tamar v Luca Castelnuovo | 6-7,4-6 |
| ITF M15 New Delhi | 2021/03/31 05:30 | S D Prajwal Dev v Luca Castelnuovo | 4-6,3-6 |
| ITF M15 Indore | 2021/03/12 04:00 | Aidan Mchugh v Luca Castelnuovo | 6-2,6-2 |
| ITF M15 Indore | 2021/03/11 04:00 | Dalwinder Singh v Luca Castelnuovo | 4-6,3-6 |
| ITF M15 Kouvola | 2021/05/26 17:00 | August Ehrnrooth v Simonas Zukauskas | 6-7,6-4,6-7 |
| ITF M15 Kouvola | 2021/05/25 10:25 | Simonas Zukauskas v Leevi Saatela | 1-6,6-3,11-9 |
| ITF M15 Parnu | 2020/11/02 08:00 | Iiro Vasa v Simonas Zukauskas | 6-2,6-3 |
| Baltic Tennis League | 2020/06/19 10:15 | Simonas Zukauskas v Arvis Berzins | 4-6,3-6 |
| Baltic Tennis League | 2020/06/18 08:20 | Simonas Zukauskas v Peteris Vinogradovs | 6-2,6-2 |
| Baltic Tennis League | 2020/06/17 11:20 | Simonas Zukauskas v Marcis Garuts | 5-7,6-2,6-1 |
| Baltic Tennis League | 2020/06/16 10:05 | Simonas Zukauskas v Robin Erik Parts | 1-6,6-2,2-6 |
| ITF M25 Irpin | 2019/08/26 14:10 | Simonas Zukauskas v Alex M Pujolras | 3-6,7-6,5-10 |