Stadium: Court 3 Round: 25 Ground: Clay
| ITF M15 Ulcinj | 2021/09/09 08:55 | Felix Gill v Alejo Lorenzo Lingua Lavallen | 6-4,5-7,5-7 |
| ITF M15 Ulcinj | 2021/09/07 08:00 | Felix Gill v Simon A Ivanov | 6-3,5-7,7-6 |
| ITF M25 Poznan | 2021/08/27 11:50 | Shintaro Mochizuki v Felix Gill | 7-6,2-6,6-3 |
| ITF M25 Poznan | 2021/08/26 14:15 | Felix Gill v Harry Wendelken | 6-1,6-4 |
| ITF M25 Poznan | 2021/08/25 08:00 | Fermin Calvo Barcelo v Felix Gill | 3-6,6-7 |
| ITF M15 Doboj | 2021/07/15 08:00 | Zsombor Piros v Felix Gill | 7-5,6-7,6-2 |
| ITF M15 Doboj | 2021/07/14 08:30 | Felix Gill v Aleksandar Mihailovic | 6-1,6-4 |
| ITF M15 Sofia | 2021/07/06 07:00 | Hanwen Li v Felix Gill | 6-4,2-6,6-3 |
| ITF M15 Allershausen | 2021/09/02 09:00 | Manish Sureshkumar v Matthew Romios | 6-1,5-7,6-3 |
| ITF M15 Allershausen | 2021/09/01 09:00 | Aliaksandr Bulitski v Matthew Romios | 4-6,6-7 |
| ITF M25 Trier | 2021/08/24 10:00 | Matthew Romios v Mick Veldheer | 1-6,0-6 |
| ITF M25 Ueberlingen | 2021/08/17 12:55 | Tim Handel v Matthew Romios | 6-4,6-2 |
| ITF M25 Frankfurt am Main | 2021/08/12 11:15 | Matthew Romios v Lucas Gerch | 6-7,1-6 |
| ITF M25 Frankfurt am Main | 2021/08/11 09:00 | Roberto Ortega-Olmedo v Matthew Romios | 2-6,4-6 |
| ITF M25 Frankfurt am Main | 2021/08/10 08:30 | Matthew Romios v Yan Sabanin | 5-7,4-6 |
| ITF M25 Frankfurt am Main | 2021/08/09 11:30 | Matthew Romios v Giles Hussey | 7-6,7-6 |