| Croatia 2.NL | 2021/06/12 15:30 | NK Trnje v NK Spansko | L | 0-2 |
| Croatia 2.NL | 2021/05/30 09:00 | NK Trnje v NK Vrbovec | W | 1-0 |
| Croatia 2.NL | 2021/05/26 15:30 | NK Maksimir v NK Trnje | W | 0-5 |
| Croatia 2.NL | 2021/05/23 09:00 | NK Trnje v NK Naftas Hask | W | 4-0 |
| Croatia 2.NL | 2021/05/09 09:00 | NK Trnje v NK Jarun | L | 1-2 |
| Croatia 2.NL | 2021/05/05 15:00 | NK Vrapce v NK Trnje | W | 1-2 |
| Croatia 2.NL | 2021/05/01 09:00 | Gaj Mace v NK Trnje | W | 0-2 |
| Croatia 2.NL | 2021/04/25 09:00 | NK Trnje v Karlovac | D | 1-1 |