Stadium: Center Court Round: 14 Ground: Hardcourt outdoor
| ITF M15 Girona | 2021/10/22 09:00 | Alexander Weis v Yan Bondarevskiy | 6-1,6-2 |
| ITF M15 Girona | 2021/10/21 08:00 | Enzo Wallart v Yan Bondarevskiy | 2-6,6-2,6-7 |
| ITF M15 Girona | 2021/10/19 11:40 | Daniel Merida Aguilar v Yan Bondarevskiy | 4-6,3-6 |
| ITF M15 Sozopol | 2021/10/17 08:10 | Billy Harris v Yan Bondarevskiy | 2-6,3-6 |
| ITF M15 Sozopol | 2021/10/16 09:30 | Yan Bondarevskiy v Andrew Paulson | 6-4,6-4 |
| ITF M15 Sozopol | 2021/10/15 09:00 | Hazem Naw v Yan Bondarevskiy | 3-6,2-6 |
| ITF M15 Sozopol | 2021/10/14 15:45 | Yanaki Milev v Yan Bondarevskiy | 3-6,4-6 |
| ITF M15 Sozopol | 2021/10/13 15:10 | Stefan Palosi v Yan Bondarevskiy | 4-6,6-2,8-10 |
| Challenger Mallorca | 2021/08/30 09:15 | Thomaz Bellucci v Rafael Giotis | 6-7,2-6 |
| Challenger Liberec | 2021/08/01 12:30 | David Vega Hernandez v Thomaz Bellucci | 6-3,3-6,6-3 |
| Challenger Poznan | 2021/07/25 13:25 | Thomaz Bellucci v David Poljak | 6-4,3-6,1-6 |
| Challenger Pozoblanco | 2021/07/20 17:10 | Matteo Viola v Thomaz Bellucci | 6-1,6-3 |
| Challenger Amersfoort | 2021/07/13 10:30 | Thomaz Bellucci v Facundo Mena | 3-6,4-6 |
| ITF M15 Champaign | 2021/06/24 14:55 | Kyle Seelig v Thomaz Bellucci | 2-6,6-2,6-4 |
| ITF M15 Champaign | 2021/06/23 21:50 | Roy Smith v Thomaz Bellucci | 6-7,3-6 |
| ITF M25 Tulsa | 2021/06/16 00:45 | Genaro Alberto Olivieri v Thomaz Bellucci | 6-3,7-5 |