Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Antalya | 2021/03/08 10:00 | Stefan Palosi v Simeon Terziev | 6-3,6-0 |
| ITF M15 Antalya | 2021/03/07 07:00 | Thiago Cigarran v Simeon Terziev | 4-6,1-6 |
| ITF M15 Antalya | 2021/02/28 07:00 | Simeon Terziev v Mert Naci Turker | 7-6,4-6,9-11 |
| ITF M15 Antalya | 2021/01/04 07:00 | Jan Sebesta v Simeon Terziev | 6-3,7-6 |
| ITF M15 Antalya | 2021/01/03 07:00 | Simeon Terziev v Kaan Cepel | 6-3,6-4 |
| ITF M15 Antalya | 2020/12/22 06:30 | Michalis Sakellaridis v Simeon Terziev | 6-3,6-1 |
| ITF M15 Antalya | 2020/12/21 10:50 | Simeon Terziev v Svyatoslav Ilnytskyy | 6-4,6-4 |
| ITF M15 Antalya | 2020/12/20 07:00 | Edouard Villoslada v Simeon Terziev | 4-6,2-6 |
| ITF M15 Antalya | 2021/02/20 07:00 | Gabriel Donev v Matias Zukas | 1-6,7-6,3-6 |
| ITF M15 Antalya | 2021/02/19 09:45 | Yunseong Chung v Gabriel Donev | 3-6,4-6 |
| ITF M15 Antalya | 2021/02/18 13:40 | Gabriel Donev v Dragos Nicolae Madaras | 7-5,2-6,6-3 |
| ITF M15 Antalya | 2021/02/17 09:10 | Gabriel Donev v Sebastian Prechtel | 6-2,6-4 |
| ITF M15 Antalya | 2021/02/16 07:00 | Gabriel Donev v Oleg Prihodko | 6-4,6-2 |
| ITF M15 Antalya | 2021/02/16 07:00 | Sandro Kopp v Gabriel Donev | 2-6,1-6 |
| ITF M15 Antalya | 2021/02/14 12:00 | Gabriel Donev v Federico Campana | 6-1,6-3 |
| ITF M15 Antalya | 2021/02/07 06:00 | Gabriel Donev v Paul Woerner | 6-4,3-6,6-10 |