| Date | Category | Player | Score | Opponent | Tournament |
|---|---|---|---|---|---|
| 2019-08-24 | S | Piper/Veselić | 6-3 6-1 | Martinis/Topić | PUNČEC OPEN 10.000 (SENIORI), 5.000 (SENIORKE) |
| 2019-08-24 | S | Piper/Veselić | 6-4 6-4 | Košćec/Plukavec | PUNČEC OPEN 10.000 (SENIORI), 5.000 (SENIORKE) |
| 2019-08-23 | S | Nikola Piper | 7-6(6) 6-0 | Matija Trcak | PUNČEC OPEN 10.000 (SENIORI), 5.000 (SENIORKE) |
| 2019-07-01 | S | Nikola Piper | 6-1 6-3 | Robert Đula | SENIORSKO PRVENSTVO HRVATSKE |
| 2019-07-01 | S | Gadžić/Piper | 3-6 6-4 12/10 | Balaž/Šiprak | SENIORSKO PRVENSTVO HRVATSKE |
| 2019-06-02 | 18 | Oštro/Piper | W.O. | Hržić/Kranjčević | ŠALATA OPEN |
| 2019-06-01 | 18 | Nikola Piper | 6-4 6-2 | Tin Oštro | ŠALATA OPEN |
| 2019-06-01 | 18 | Nikola Piper | 6-1 6-0 | Vid Marić | ŠALATA OPEN |
| 2019-06-01 | 18 | Oštro/Piper | 6-3 7-6(3) | Marić/Šimunović | ŠALATA OPEN |
| 2019-04-27 | 18 | Margetić/Piper | 6-1 6-4 | Kranjčević/Šarunić | OP TK SAMOBOR 1890 |
| 2019-04-27 | 18 | Nikola Piper | 6-2 6-1 | Anton Šarunić | OP TK SAMOBOR 1890 |
| 2019-04-27 | 18 | Nikola Piper | 6-0 6-0 | Branko Faullend Heferer | OP TK SAMOBOR 1890 |
| 2019-03-24 | 18 | Piper/Žeželj | 6-2 6-4 | Jamnicki/Krolo | OP TK RABAC |
| 2019-03-23 | 18 | Nikola Piper | 6-0 6-2 | Karlo Krolo | OP TK RABAC |
| 2019-03-23 | 18 | Piper/Žeželj | 6-1 7-5 | Tkalec/Vukadin | OP TK RABAC |
| 2019-02-24 | 18 | Nikola Piper | 6-3 6-1 | Ivan Šodan | DVORANSKO OP DALMACIJA |
| 2019-02-23 | 18 | Nikola Piper | 7-5 6-4 | Adrijan Hržić | DVORANSKO OP DALMACIJA |
| 2019-02-23 | 18 | Nikola Piper | 6-0 6-0 | Lovro Maričić | DVORANSKO OP DALMACIJA |
| 2019-02-11 | 18 | Nikola Piper | 6-2 6-1 | Karlo Krolo | DVORANSKO PRVENSTVO HRVATSKE JUNIORI 18 |
| 2019-02-10 | 18 | Nikola Piper | 7-5 3-6 6-3 | Đani Ivičić | DVORANSKO PRVENSTVO HRVATSKE JUNIORI 18 |
| 2019-02-02 | 18 | Nikola Piper | 6-3 6-2 | Ivan Šodan | DVORANSKO OP OGULINA - TT CUP |
| 2019-01-25 | S | Nikola Piper | 7-5 6-0 | Lovre Erceg | DVORANSKO PRVENSTVO HRVATSKE SENIORI |
| 2018-11-25 | 18 | Nikola Piper | 6-1 6-1 | Teodor Zlatar | DVORANSKO OP TK PONIKVE |
| 2018-11-25 | 18 | Nikola Piper | 6-2 7-5 | Dominik Šimunović | DVORANSKO OP TK PONIKVE |
| 2018-11-10 | 18 | Nikola Piper | 6-3 6-2 | Marino Jakić | DVORANSKO OP TK DALMACIJA |
| 2018-11-10 | 18 | Nikola Piper | 7-6(6) 2-6 6-4 | Josip Šimundža | DVORANSKO OP TK DALMACIJA |
| 2018-06-30 | S | Nikola Piper | 6-1 6-2 | Marino Alpeza | SENIORSKO PRVENSTVO HRVATSKE |
| 2018-06-03 | 18 | Nikola Piper | 6-1 6-4 | Filip Sabljak | ŠALATA OPEN |
| 2018-06-02 | 18 | Nikola Piper | 6-0 6-0 | Vid Marić | ŠALATA OPEN |
| 2018-06-02 | 18 | Jurković/Piper | 4-6 6-1 11/9 | Jurina/Sokolić | ŠALATA OPEN |
| 2018-04-16 | 18 | JAMNICKI/PIPER | 6-1 6-2 | Ajduković/Suevich | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-04-15 | 18 | Nikola PIPER | 6-3 6-3 | Mateo MRVAC | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-04-14 | 18 | Nikola PIPER | 6-3 6-0 | Leon KOS | PRVENSTVO HRVATSKE DO 18 GODINA |
| 2018-02-11 | 18 | GUŠĆIĆ/PIPER | 6-3 6-3 | BAŠIĆ/DIZDAREVIĆ | DVORANSKO PRVENSTVO HRVATSKE JUNIORI 18 |
| 2018-02-10 | 18 | Nikola PIPER | 6-1 6-1 | Mile MATIĆ | DVORANSKO PRVENSTVO HRVATSKE JUNIORI 18 |
| 2018-01-26 | S | Nikola PIPER | 6-2 6-2 | Marin ŠIŠKO | DVORANSKO PRVENSTVO HRVATSKE SENIORI |
| 2018-01-06 | 18 | Nikola PIPER | 6-3 6-3 | Anton ŠARUNIĆ | DVORANSKO OP PONIKVE 18 |