Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Novi Sad | 2021/07/25 10:45 | Maxim Krapivin v Valerio Aboian | 2-6,0-6 |
| ITF M15 Sofia | 2021/07/05 08:00 | Aleksandr Braynin v Maxim Krapivin | 6-4,6-3 |
| ITF M25 Belgrade | 2021/06/27 07:00 | Maxim Krapivin v Mirko Martinez | 0-6,5-7 |
| ITF M15 Sarajevo | 2021/05/31 09:00 | Maxim Krapivin v Ali Habib | 2-6,0-6 |
| ITF M25 Kiseljak | 2021/05/23 13:15 | Flemming Peters v Maxim Krapivin | 3-6,7-5,10-6 |
| ITF M15 Brcko | 2021/05/16 08:15 | Maxim Krapivin v Edris Fetisleam | 1-6,5-7 |
| ITF M15 Prijedor | 2021/05/09 07:00 | Stefan Ivic v Maxim Krapivin | 6-1,7-6 |
| ITF M15 St Petersburg Qual | 2021/04/11 07:00 | Maxim Krapivin v Aliaksandr Liaonenka | 3-6,3-6 |
| Challenger Poznan | 2021/07/25 09:00 | Bogdan Bobrov v Miljan Zekic | 4-6,1-6 |
| Challenger Tampere | 2021/07/20 15:35 | Bogdan Bobrov v Pedro Cachin | 1-6,5-7 |
| Challenger Tampere | 2021/07/19 12:25 | Alexander Erler v Bogdan Bobrov | 6-4,5-7,1-6 |
| Challenger Tampere | 2021/07/18 08:00 | Bogdan Bobrov v Markus Eriksson | 7-6,6-4 |
| Challenger Iasi | 2021/07/13 14:05 | Mohamed Aziz Dougaz v Bogdan Bobrov | 6-4,7-6 |
| Challenger Iasi | 2021/07/12 08:00 | Bogdan Bobrov v Dan Alexandru Tomescu | 2-6,3-6 |
| Challenger Iasi | 2021/07/11 08:50 | Bogdan Bobrov v Oleg Prihodko | 6-4,7-6 |
| Challenger Perugia | 2021/07/05 12:00 | Francesco Passaro v Bogdan Bobrov | 5-7,6-1,6-4 |