| UTR Pro Tennis Series Zadar | 2021/10/02 13:00 | Lawrence Bataljin v Ivan Liutarevich | 6-4,6-3 |
| UTR Pro Tennis Series Zadar | 2021/09/30 12:00 | Ivan Liutarevich v Michalis Sakellaridis | 6-7,5-6 |
| UTR Pro Tennis Series Zadar | 2021/09/29 15:00 | Ivan Liutarevich v Deni Zmak | 4-6,6-4,6-6 |
| UTR Pro Tennis Series Zadar | 2021/09/28 11:00 | Ivan Liutarevich v Ivan Denisov | 3-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/09/27 11:00 | Ivan Liutarevich v Maxim Krapivin | 6-4,5-1 |
| ITF M15 Ulcinj | 2021/09/22 12:00 | Ivan Liutarevich v Juan Pablo Paz | 3-6,0-6 |
| ITF M15 Ulcinj | 2021/09/15 09:30 | Ivan Liutarevich v Alexis Musialek | 1-6,2-6 |
| ITF M15 Ulcinj | 2021/09/09 09:55 | Juan Pablo Paz v Ivan Liutarevich | 6-2,6-7,6-1 |
| ITF M15 Pirot | 2021/09/20 09:30 | Stefan Ivic v Goran Zivotic | 3-6,3-6 |
| ITF M15 Pirot | 2021/09/19 09:30 | Jamie Krattiger v Stefan Ivic | 4-6,1-6 |
| ITF M15 Zlatibor | 2021/09/14 08:00 | Jasza Szajrych v Stefan Ivic | 6-3,6-3 |
| ITF M15 Zlatibor | 2021/09/13 08:00 | Dusan Trunic v Stefan Ivic | 6-4,1-6,8-10 |
| ITF M15 Zlatibor | 2021/09/12 08:45 | Stefan Ivic v Luka Todorovic | 6-4,6-1 |
| ITF M15 Ulcinj | 2021/09/05 07:30 | Stefan Ivic v Aliaksandr Liaonenka | 4-6,4-6 |
| ITF M15 Novi Sad | 2021/07/25 10:45 | Stefan Ivic v Bogdan Pavel | 6-7,1-6 |
| ITF M15 Doboj | 2021/07/11 08:15 | Stefan Ivic v Vladan Tadic | 3-6,6-3,8-10 |