| Date | Category | Player | Score | Opponent | Tournament |
|---|---|---|---|---|---|
| 2018-05-12 | 12 | Maks Zvonimir GRDINIĆ | 6-3 6-1 | Juraj HORVAT | PRVENSTVO HRVATSKE DO 12 GODINA |
| 2018-04-23 | 12 | Maks Zvonimir GRDINIĆ | 6-3 6-0 | Ryan ZUBERBUHLER | OP TK SAMOBOR 1890 |
| 2018-04-22 | 12 | Maks Zvonimir GRDINIĆ | 6-1 6-0 | Kristian BALDONI | OP TK SAMOBOR 1890 |
| 2018-04-21 | 12 | Maks Zvonimir GRDINIĆ | 7-5 4-6 6-2 | Jan MARKAN | OP TK SAMOBOR 1890 |
| 2018-04-20 | 12 | Maks Zvonimir GRDINIĆ | 6-2 6-2 | Borna Filip ROSENZWEIG | OP TK SAMOBOR 1890 |
| 2018-04-20 | 12 | Maks Zvonimir GRDINIĆ | 6-2 6-4 | Bruno ĆUPIĆ | OP TK SAMOBOR 1890 |
| 2018-04-15 | 12 | Maks Zvonimir GRDINIĆ | 6-2 6-0 | Noa LEVAK | GRILLOV MEMORIJAL |
| 2018-04-14 | 12 | Maks Zvonimir GRDINIĆ | 2-6 6-4 6-1 | Niko KOVAČEVIĆ | GRILLOV MEMORIJAL |
| 2018-04-13 | 12 | Maks Zvonimir GRDINIĆ | 6-7(10) 6-2 6-2 | Roko NOVAKOVIĆ | GRILLOV MEMORIJAL |
| 2018-04-13 | 12 | Maks Zvonimir GRDINIĆ | 6-3 6-0 | Noa PASARIĆ | GRILLOV MEMORIJAL |
| 2018-02-17 | 12 | Maks Zvonimir GRDINIĆ | 6-2 6-4 | Nikola BAGARIĆ | Dvoransko Babolat ZAGI Kup |
| 2018-01-20 | 12 | Maks Zvonimir GRDINIĆ | 6-4 6-2 | Erik ŠAGOVAC | DVORANSKO OP PONIKVE 12 |
| 2018-01-20 | 12 | Maks Zvonimir GRDINIĆ | 6-1 6-0 | Daniel MASLIĆ | DVORANSKO OP PONIKVE 12 |