Stadium: Court 8 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/06/27 06:30 | Cheng-Yu Yu v Sergo Sikharulidze | 3-6,7-5,14-12 |
| ITF M15 Antalya | 2021/06/21 08:25 | Sergo Sikharulidze v Vladislav Melnic | 7-6,4-6,2-10 |
| ITF M15 Antalya | 2021/06/20 07:00 | Sergo Sikharulidze v Andrej Krajcik | 4-6,6-3,10-6 |
| ITF M15 Antalya | 2021/06/13 07:30 | Marsel Ilhan v Sergo Sikharulidze | 6-1,6-4 |
| ITF M15 Antalya | 2021/06/06 07:30 | Sergo Sikharulidze v Fausto Tabacco | 1-6,1-6 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Sergo Sikharulidze v Denis Parshutin | 3-6,3-6 |
| ITF M15 Novomoskovsk | 2021/05/25 06:15 | Sergo Sikharulidze v Aleksandr Braynin | 2-6,0-6 |
| ITF M15 Tbilisi | 2021/05/18 05:30 | Sergo Sikharulidze v Alexander Boborykin | 6-7,4-6 |
| Davis Cup | 2021/06/19 09:35 | Egill Sigurdsson v Raphael Calzi | 4-6,0-6 |
| Davis Cup | 2021/06/17 09:30 | Petros Chrysochos v Egill Sigurdsson | 6-1,6-0 |
| Davis Cup | 2021/06/16 09:20 | Aleksandre Metreveli v Egill Sigurdsson | 6-0,6-3 |
| ITF M15 Cairo | 2021/05/02 08:00 | Marco De Rosa v Egill Sigurdsson | 4-6,6-4,10-7 |
| ITF M15 Cairo | 2021/04/25 07:30 | Luka Petrovic v Egill Sigurdsson | 6-2,6-3 |
| ITF M15 Cairo | 2021/04/20 08:00 | Egill Sigurdsson v Shohei Chikami | 2-6,7-6,4-10 |
| ITF M15 Cairo | 2021/04/19 08:00 | Oleg Khotkov v Egill Sigurdsson | 3-6,5-7 |
| ITF M15 Cairo | 2021/04/18 09:30 | Jordi Garcia Mestre v Egill Sigurdsson | 4-6,2-6 |