Stadium: Court 1 Round: 44 Ground: Clay
| ITF Belgium F1 Qual | 2018/06/16 08:00 | Guillaume Dermiens v Charles Tzicas | 6-4,6-3 |
| ITF M15 Huy | 2021/08/22 13:10 | Guillaume Dermiens v Cedric Stanke | 6-3,6-1 |
| ITF M25 Koksijde | 2021/08/17 08:00 | Guillaume Dermiens v Francesco Passaro | 2-6,1-6 |
| ITF M25 Koksijde | 2021/08/16 11:50 | Guillaume Dermiens v Alen Moritz Hodzic | 6-4,6-3 |
| ITF M15 Esch/Alzette | 2021/07/21 14:25 | Guillaume Dermiens v Patrick Kypson | 1-6,3-6 |
| ITF M15 Esch/Alzette | 2021/07/20 12:55 | Guillaume Dermiens v Raphael Calzi | 1-6,6-4,6-4 |
| ITF M15 Esch/Alzette | 2021/07/19 09:00 | Lucas Szewczyk v Guillaume Dermiens | 3-6,2-6 |
| ITF M15 Esch/Alzette | 2021/07/18 14:25 | Floris Podzimek v Guillaume Dermiens | 3-6,1-6 |
| ITF M25 Marburg | 2021/07/05 08:00 | Florian Broska v Guillaume Dermiens | 7-5,6-4 |
| ITF M15 Skopje | 2021/06/07 08:00 | Charles Tzicas v Sidane Pontjodikromo | 2-6,5-7 |
| ITF M15 Skopje | 2021/06/06 07:30 | Charles Tzicas v Matija Zugic | 6-1,6-3 |
| ITF M15 Cairo | 2021/05/06 11:35 | Paul Jubb v Charles Tzicas | 6-4,6-4 |
| ITF M15 Cairo | 2021/05/05 08:00 | Charles Tzicas v Abdulhamid Mubarak | 6-2,6-3 |
| ITF M15 Cairo | 2021/04/28 08:00 | Adam El Mihdawy v Charles Tzicas | 6-1,4-6,6-1 |
| ITF M15 Cairo | 2021/04/18 07:00 | Charles Tzicas v Benedikt Henning | 4-6,2-6 |
| ITF M15 Cairo | 2021/01/25 10:30 | Yurii Dzhavakian v Charles Tzicas | 6-1,6-3 |
| ITF M15 Cairo | 2021/01/24 08:00 | Ashraf El Sayed v Charles Tzicas | 3-6,2-6 |