| 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 Ulcinj | 2021/09/08 10:00 | Ivan Liutarevich v Daniel Ibragimov | 4-6,6-4,6-2 |
| ITF M15 Ulcinj | 2021/08/31 11:10 | Ivan Liutarevich v Jean Thirouin | 2-6,2-6 |
| ITF M25 Poznan | 2021/08/25 11:00 | Ivan Liutarevich v Aleksander Orlikowski | 6-2,5-7,3-6 |
| ITF M15 Shymkent | 2021/06/02 07:20 | Alexandr Binda v Ivan Liutarevich | 3-6,7-5,6-3 |
| ITF M15 Shymkent | 2021/05/28 05:00 | Ivan Liutarevich v Damien Wenger | 0-6,3-6 |
| ITF M15 Ulcinj | 2021/09/20 08:00 | Joris Moret v Maxim Krapivin | 6-3,6-2 |
| ITF M15 Ulcinj | 2021/09/12 08:00 | Maxim Krapivin v Eric Morris | 4-6,2-6 |
| ITF M15 Ulcinj | 2021/09/05 07:30 | Daniel Ibragimov v Maxim Krapivin | 7-5,7-6 |
| 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 |