Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M15 - Monastir | 2021/04/18 14:00 | Andrea Guerrieri v Bruno P Navarro | 4-6,7-6,10-6 |
| ITF M15 - Monastir | 2021/04/14 11:00 | Benjamin Pietri v Andrea Guerrieri | 4-6,6-2,7-5 |
| ITF M15 - Monastir | 2021/04/12 12:30 | Andrea Guerrieri v Fabio Coelho | 6-3,6-2 |
| ITF M15 - Monastir | 2021/04/12 08:00 | Andrea Guerrieri v Federico Lucini | 6-1,6-3 |
| ITF M15 - Monastir | 2021/04/11 09:00 | Andrea Guerrieri v Lukas H Lilleengen | 7-5,7-5 |
| ITF - M15 St Petersborg | 2021/02/10 08:35 | Vladimir Ivanov v Andrea Guerrieri | 6-4,6-2 |
| ITF - M15 St Petersborg | 2021/02/08 07:00 | Andrea Guerrieri v Alexandr Binda | 6-0,7-6 |
| ITF M15 - St Petersborg - Kvalifikation | 2021/02/07 07:00 | Andrea Guerrieri v Bogdan Seleznev | 6-2,6-1 |
| ITF M15 - Monastir | 2021/04/18 14:00 | Harry Wendelken v Osgar O'Hoisin | 7-6,6-2 |
| UK Pro League | 2021/04/11 08:30 | Alexis Canter v Harry Wendelken | 4-6,3-6 |
| UK Pro League | 2021/04/10 10:15 | Tom Hands v Harry Wendelken | 3-6,6-4,7-10 |
| UK Pro League | 2021/04/09 14:30 | Harry Wendelken v George Houghton | 6-1,6-7,7-10 |
| UK Pro League | 2021/03/21 16:30 | Harry Wendelken v Tom Hands | 6-3,4-6,10-4 |
| UK Pro League | 2021/03/20 16:30 | Julian Cash v Harry Wendelken | 6-4,6-4 |
| UK Pro League | 2021/03/19 11:15 | Mark Whitehouse v Harry Wendelken | 6-2,6-3 |
| UK Pro League | 2021/03/18 20:00 | Oscar Weightman v Harry Wendelken | 4-6,6-1,10-8 |