Stadium: Court 2 Round: 62 Ground: Clay
| ITF M15 Gdynia | 2021/08/09 10:30 | Petr Hajek v Simonas Zukauskas | 6-0,6-1 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Martins Rocens v Simonas Zukauskas | 6-4,5-7,8-10 |
| ITF M25 Wroclaw | 2021/06/27 11:00 | Moritz Trocker v Simonas Zukauskas | 6-4,6-0 |
| ITF M15 Kouvola | 2021/05/27 11:25 | Luca Castelnuovo v Simonas Zukauskas | 6-1,6-3 |
| 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 |
| ATP Hamburg | 2021/07/10 10:40 | Lewie Lane v Sumit Nagal | 3-6,1-6 |
| ITF M25 Wroclaw | 2021/06/28 11:00 | Lewie Lane v Szymon Kielan | 3-6,0-6 |
| ITF M25 Wroclaw | 2021/06/27 12:30 | Remy Bertola v Lewie Lane | 2-6,4-6 |
| ITF M15 Antalya | 2021/05/30 07:30 | Lewie Lane v Noel Larwig | 6-7,4-6 |
| ITF M15 Antalya | 2021/05/23 07:00 | Thomas Deschamps v Lewie Lane | 7-5,6-7,10-5 |
| ITF M25 Meerbusch | 2021/04/12 11:00 | Mats Rosenkranz v Lewie Lane | 6-2,6-4 |
| ITF M25 Meerbusch | 2021/04/11 14:00 | Lewie Lane v Nicolas Affolter | 6-2,6-2 |
| ITF M15 Sharm El Sheikh | 2021/04/04 11:00 | Lorenzo Rottoli v Lewie Lane | 6-3,6-4 |