Round: 54 Ground: Synthetic outdoor
| ITF M25 Taipei | 2019/07/22 02:00 | Ren Nakamura v Harry Thursfield | 6-2,6-2 |
| ITF M15 Tanger | 2019/07/15 09:00 | Javier Naser v Harry Thursfield | 6-3,2-6,11-9 |
| ITF M15 Guam | 2019/06/04 01:10 | Harry Thursfield v Karunuday Singh | 1-6,2-6 |
| ITF M15 Heraklion | 2019/05/13 09:00 | Harry Thursfield v Martin Dimitrov | 1-6,1-6 |
| ITF M15 Heraklion | 2019/05/06 09:00 | Harry Thursfield v Ervin H Eminefendic | 5-7,4-6 |
| ITF M15 Orange Park | 2019/04/15 14:00 | Harry Thursfield v Ritik Sundaram | 3-6,1-6 |
| ITF M25 Bolton | 2019/04/01 08:00 | Ronan Joncour v Harry Thursfield | 6-0,6-1 |
| ITF Túnez F36 | 2018/10/14 08:30 | Harry Thursfield v Alex Solanki | 2-6,2-6 |