Round: 1
| UK Pro League | 2021/03/21 13:30 | Weightman, Oscar v George Houghton | 3-6,7-5,2-10 |
| ITF M15 Melilla | 2021/09/21 16:35 | Weightman, Oscar v Mario Mansilla Diez | 1-6,6-2,0-6 |
| ITF M25 Poznan | 2021/08/22 08:00 | Weightman, Oscar v Ivan Kazakov | 6-3,2-6,1-10 |
| ITF M15 Parnu | 2021/08/04 08:35 | Ergi Kirkin v Weightman, Oscar | 6-2,4-6,7-5 |
| UK Pro League | 2021/07/18 15:43 | Jack Gibbens v Weightman, Oscar | 3-6,6-4,0-0 |
| UK Pro League | 2021/07/18 14:30 | Weightman, Oscar v Jack Gibbens | 6-3,4-6,11-13 |
| UK Pro League | 2021/07/16 10:00 | Weightman, Oscar v Liam Hignett | 7-6,6-4 |
| UK Pro League | 2021/07/15 11:30 | Lui Maxted v Weightman, Oscar | 6-3,6-3 |
| UK Pro League | 2021/07/14 10:00 | Weightman, Oscar v Hands, Tom | 6-3,6-3 |
| UK Pro League | 2021/09/17 15:30 | George Houghton v Brady, Tiarnan | 6-1,6-7,10-7 |
| UK Pro League | 2021/09/16 16:00 | George Houghton v Ying Hou | 6-2,6-3 |
| UK Pro League | 2021/09/15 09:30 | George Houghton v Liam Hignett | 4-6,6-7 |
| UK Pro League | 2021/09/13 15:30 | Sean Hodkin v George Houghton | 7-5,6-4 |
| ITF - M15 Héraklion | 2021/05/30 08:00 | Federico Arnaboldi v George Houghton | 7-6,6-3 |
| ITF - M15 Héraklion | 2021/05/24 06:30 | Mattia Bellucci v George Houghton | 6-4,6-3 |
| ITF - M15 Héraklion | 2021/05/23 08:00 | Morris, Eric v George Houghton | 6-7,3-6 |
| ITF - M15 Héraklion | 2021/05/17 08:00 | Soghoyan, Artur v George Houghton | 6-4,7-5 |