| ITF Great Britain F4 | 2017/09/14 09:25 | Lucas Catarina v Carr, Simon | 6-3,6-1 |
| Coupe Davis | 2021/06/16 09:05 | Lucas Catarina v Liam Delicata | 6-0,6-1 |
| ITF M15 Helsinki | 2021/06/05 07:00 | Lucas Catarina v Lilian Marmousez | 3-6,3-6 |
| ITF M15 Helsinki | 2021/06/04 07:00 | Lucas Catarina v Clement Tabur | 4-6,7-5,6-3 |
| ITF M15 Helsinki | 2021/06/03 08:50 | Lucas Catarina v Del Federico, Andrea | 6-0,6-2 |
| ITF M15 Helsinki | 2021/06/02 06:30 | Lucas Catarina v Ivanov, Vladimir | 7-5,1-6,6-2 |
| Challenger - Oeiras | 2021/05/24 10:00 | Lucas Catarina v Nikolas Sanchez Izquierdo | 4-6,2-6 |
| Challenger - Oeiras | 2021/05/23 10:00 | Lucas Catarina v Slobodchikov, Ronald | 6-1,6-3 |
| ITF - M15 Monastir | 2021/05/09 08:30 | Luca Potenza v Lucas Catarina | 1-6,6-2,6-1 |
| Coupe Davis | 2021/06/16 09:50 | Alex Knaff v Carr, Simon | 3-6,2-6 |
| ITF - M15 Bucarest | 2021/05/25 15:55 | Alexis Gautier v Carr, Simon | 6-1,6-1 |
| ITF M25 Jablonec Nad Nisou | 2021/05/18 08:55 | Carr, Simon v Patrik Rikl | 4-6,3-6 |
| ITF M15 Cairo | 2021/05/07 08:00 | Carr, Simon v Ivanov, Simon Anthony | 3-6,6-1,1-6 |
| ITF M15 Cairo | 2021/05/06 08:00 | Carr, Simon v Jose Pereira | 2-6,6-4,6-4 |
| ITF M15 Cairo | 2021/05/05 10:00 | Carr, Simon v Makhlouf, Sherif | 6-4,7-5 |
| ITF M15 New Delhi | 2021/04/03 05:00 | Oliver Crawford v Carr, Simon | 6-4,6-3 |
| ITF M15 New Delhi | 2021/04/02 05:30 | Zsombor Velcz v Carr, Simon | 3-6,6-2,3-6 |