| Date | Category | Player | Score | Opponent | Tournament |
|---|---|---|---|---|---|
| 2018-06-03 | 18 | Mateo Mrvac | 6-2 7-6(1) | Antun Katanec | ŠALATA OPEN |
| 2018-06-02 | 18 | Mateo Mrvac | 6-1 6-3 | Luka Vidović | ŠALATA OPEN |
| 2018-06-02 | 18 | Mrvac/Vukadin | 6-3 6-1 | Kos/Mlinar | ŠALATA OPEN |
| 2018-04-29 | 18 | Markušić/Mrvac | 5-7 6-0 10/4 | Kranjčević/Šarunić | OP TK SAMOBOR 1890 |
| 2018-04-28 | 18 | Mateo MRVAC | 7-6(4) 2-6 7-6(3) | Luka ĐEREK | OP TK SAMOBOR 1890 |
| 2018-04-28 | 18 | Markušić/Mrvac | 6-2 7-5 | Sabljak/Sain | OP TK SAMOBOR 1890 |
| 2018-04-17 | 18 | MARKUŠIĆ/MRVAC | 6-4 6-2 | Ajduković/Suevich | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-04-16 | 18 | Mateo MRVAC | 6-2 6-4 | Andro KRANJČEVIĆ | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-04-16 | 18 | MARKUŠIĆ/MRVAC | 6-4 6-2 | Gušćić/Kranjčević | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-04-15 | 18 | Mateo MRVAC | 6-3 6-3 | Nikola PIPER | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-04-14 | 18 | Mateo MRVAC | 6-3 6-1 | Justin KERMECI | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-04-05 | 18 | Mateo MRVAC | 6-2 6-3 | Dominik ŠIMUNOVIĆ | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2018-02-09 | 18 | Mateo MRVAC | 6-3 6-1 | Božo BARUN | DVORANSKO PRVENSTVO HRVATSKE JUNIORI 18 |