Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Uslar | 2023/07/17 10:30 | Hallquist Lithen, John v Orlita, Daniel | 6-2,6-2 |
| ITF M15 Uslar | 2023/07/17 08:00 | Hallquist Lithen, John v Vojtech Mares | 6-1,6-3 |
| Challenger Palmas del Mar | 2023/06/12 15:00 | Nick Chappell v Hallquist Lithen, John | 4-6,6-3,6-3 |
| ITF M25 Ystad | 2022/08/09 08:45 | Hallquist Lithen, John v Lewie Lane | 6-7,6-0,7-10 |
| ITF M25 Ystad | 2022/08/08 12:40 | Lucas Renard v Hallquist Lithen, John | 3-6,6-7 |
| ITF M25 Falun | 2019/10/02 11:00 | Podzus, Martins v Hallquist Lithen, John | 6-1,6-2 |
| ITF M25 Falun | 2019/10/01 11:00 | Lucas Renard v Hallquist Lithen, John | 4-6,2-6 |
| Stockholm, Singles M-ITF-SWE-05A | 2019/09/24 10:25 | Lakat, Florian v Hallquist Lithen, John | 7-6,6-1 |