Stadium: Hard Court 4 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/07 09:00 | David Quayle v Scott Lawrence | 6-2,6-1 |
| ITF M25 Portimao | 2021/10/27 13:00 | David Quayle v Petros Chrysochos | 1-6,3-6 |
| ITF M25 Portimao | 2021/10/26 10:55 | David Quayle v William Ma | 6-3,6-2 |
| ITF M25 Portimao | 2021/10/25 09:00 | Mikail Alimli v David Quayle | 1-6,4-6 |
| ITF M25 Quinta Do Lago | 2021/10/17 12:00 | Pawel Juszczak v David Quayle | 6-2,6-3 |
| UK Pro League | 2021/10/02 12:30 | David Quayle v Patrick Foley | 6-7,6-4,8-10 |
| UK Pro League | 2021/10/01 15:30 | Sahej Maker v David Quayle | 0-6,6-4,4-10 |
| UK Pro League | 2021/09/30 09:00 | George Houghton v David Quayle | 7-6,3-6,10-8 |
| ITF M15 Doha | 2021/10/13 18:45 | Dominik Boehler v Preston Brown | 6-4,6-3 |
| ITF M15 Doha | 2021/10/12 12:30 | Nico Hornitschek v Preston Brown | 2-6,4-6 |
| ITF M15 Doha | 2021/10/11 13:30 | Chinmaya Dev Chauhan v Preston Brown | 2-6,3-6 |
| ITF M15 Doha | 2021/10/05 12:00 | Iiro Vasa v Preston Brown | 7-5,3-6,6-3 |
| ITF M25 Pretoria | 2021/09/26 08:50 | Preston Brown v Luc Koenig | 7-5,2-6,5-10 |
| ITF M25 Johannesburg | 2021/09/21 07:00 | Menelaos Efstathiou v Preston Brown | 6-2,6-2 |
| ITF M25 Johannesburg | 2021/09/20 07:00 | Guelord Kayombo v Preston Brown | 1-6,2-6 |
| ITF M25 Johannesburg Qual | 2021/09/19 12:00 | Adi Dagan v Preston Brown | 0-6,5-7 |