| Date | Category | Player | Score | Opponent | Tournament |
|---|---|---|---|---|---|
| 2020-11-03 | 12 | Ivan Dumbović | 6-0 6-1 | Rene Bertos | DVORANSKO OP TK PONIKVE |
| 2020-11-03 | 12 | Ivan Dumbović | 6-4 7-5 | Marko Erceg | DVORANSKO OP TK PONIKVE |
| 2020-11-02 | 12 | Ivan Dumbović | 6-1 6-1 | Marko Grbić | DVORANSKO OP TK PONIKVE |
| 2020-11-02 | 12 | Ivan Dumbović | 6-2 6-4 | Dan Šarić | DVORANSKO OP TK PONIKVE |
| 2020-11-01 | 12 | Ivan Dumbović | 6-0 6-0 | Hrvoje Pavlek | DVORANSKO OP TK PONIKVE |
| 2020-10-25 | 14 | Ivan Dumbović | 7-6(3) 6-1 | Beka Pižurica | DVORANSKO OP TK PONIKVE |
| 2020-10-25 | 14 | Ivan Dumbović | 6-7(2) 6-0 6-0 | Natan Bokun | DVORANSKO OP TK PONIKVE |
| 2020-10-24 | 14 | Ivan Dumbović | 6-2 6-0 | Ivano Šarić | DVORANSKO OP TK PONIKVE |
| 2020-10-19 | 12 | Ivan Dumbović | 5-7 6-2 6-2 | Hrvoje Jutreša | DVORANSKI BABOLAT ZAGI KUP |
| 2020-10-18 | 12 | Ivan Dumbović | 6-2 6-1 | Jan Markan | DVORANSKI BABOLAT ZAGI KUP |
| 2020-10-18 | 12 | Ivan Dumbović | 6-0 6-1 | Vito Potočnjak | DVORANSKI BABOLAT ZAGI KUP |
| 2020-10-17 | 12 | Ivan Dumbović | 6-0 6-0 | Patrick Voljavec | DVORANSKI BABOLAT ZAGI KUP |
| 2020-10-17 | 12 | Ivan Dumbović | 6-1 6-1 | Tristan Sudar | DVORANSKI BABOLAT ZAGI KUP |
| 2020-10-10 | 14 | Ivan Dumbović | 7-6(6) 6-4 | Niko Nadali | DVORANSKI BABOLAT ZAGI KUP |
| 2020-10-05 | 12 | Ivan Dumbović | 7-5 7-5 | Hrvoje Jutreša | OP TK OGULIN |
| 2020-10-05 | 12 | Ivan Dumbović | 6-1 6-2 | Diego Martinović | OP TK OGULIN |
| 2020-10-04 | 12 | Ivan Dumbović | 6-0 6-1 | Alex Bauer Minkara | OP TK OGULIN |
| 2020-10-04 | 12 | Ivan Dumbović | 6-0 6-1 | Zinoviy Shefer | OP TK OGULIN |
| 2020-10-03 | 12 | Ivan Dumbović | 6-2 6-2 | Dan Šarić | OP TK OGULIN |
| 2020-09-28 | 14 | Dumbović/Zorica | 6-3 7-5 | Aiassa/Jovanović | MEMORIJAL MARIJANA ORŠANIĆA |
| 2020-09-27 | 14 | Ivan Dumbović | 6-4 6-3 | Roko Novaković | MEMORIJAL MARIJANA ORŠANIĆA |
| 2020-09-26 | 14 | Ivan Dumbović | 6-0 6-2 | David Smokrović | MEMORIJAL MARIJANA ORŠANIĆA |
| 2020-09-07 | 14 | Ivan Dumbović | 6-1 6-2 | Stjepan Bogdan | HEP PRVENSTVO HRVATSKE DO 14 GODINA |
| 2020-09-07 | 14 | Dumbović/Jutreša | 6-2 6-3 | Levak/Sabolić | HEP PRVENSTVO HRVATSKE DO 14 GODINA |
| 2020-09-06 | 14 | Ivan Dumbović | 6-1 6-4 | Ivano Šarić | HEP PRVENSTVO HRVATSKE DO 14 GODINA |
| 2020-09-05 | 14 | Ivan Dumbović | 6-1 6-0 | Antonio Tolić | HEP PRVENSTVO HRVATSKE DO 14 GODINA |
| 2020-07-29 | 14 | Dumbović/Viduka | 7-6(4) 6-2 | Cerezin/Maričić | OP TK VRBOVEC |
| 2020-07-28 | 14 | Ivan Dumbović | 6-4 6-1 | Dominik Banović | OP TK VRBOVEC |
| 2020-07-28 | 14 | Dumbović/Viduka | 6-3 6-1 | Božičević/Šagovac | OP TK VRBOVEC |
| 2020-07-27 | 14 | Ivan Dumbović | 4-6 6-3 10/8 | Filip Kreković | OP TK VRBOVEC |
| 2020-07-27 | 14 | Ivan Dumbović | 3-6 6-4 10/7 | Ivon Jovanović | OP TK VRBOVEC |
| 2020-07-24 | 12 | Ivan Dumbović | 6-1 6-2 | Rafael Behr | HEP PRVENSTVO HRVATSKE DO 12 GODINA |
| 2020-07-24 | 12 | Ivan Dumbović | 7-6(5) RET. | Ivan Maraković | HEP PRVENSTVO HRVATSKE DO 12 GODINA |
| 2020-07-23 | 12 | Ivan Dumbović | 6-0 6-2 | Jakov Dubovečak | HEP PRVENSTVO HRVATSKE DO 12 GODINA |
| 2020-07-23 | 12 | Dumbović/Zorica | 1-6 6-4 10/4 | Kažinić/Marić Modrušan | HEP PRVENSTVO HRVATSKE DO 12 GODINA |
| 2020-07-13 | 12 | Ivan Dumbović | 6-0 6-3 | Dario Zorica | VINDI KUP |
| 2020-07-13 | 12 | Ivan Dumbović | 7-5 6-2 | Rene Bertos | VINDI KUP |
| 2020-07-13 | 12 | Dumbović/Zorica | W.O. | Erceg/Jovanović | VINDI KUP |
| 2020-07-13 | 12 | Dumbović/Zorica | 6-4 6-3 | Ladić/Martinović | VINDI KUP |
| 2020-07-12 | 12 | Ivan Dumbović | 6-2 6-3 | Matej Dragičević | VINDI KUP |
| 2020-07-11 | 12 | Ivan Dumbović | 6-0 6-0 | Ivan Bračko | VINDI KUP |
| 2020-07-11 | 12 | Ivan Dumbović | 6-1 6-1 | Rian Bregović | VINDI KUP |
| 2020-07-08 | 12 | Ivan Dumbović | 6-0 6-2 | Matej Kukrika | REGIONALNO PRVENSTVO GRADA ZAGREBA |
| 2020-07-08 | 12 | Ivan Dumbović | 6-4 6-2 | Ivon Jovanović | REGIONALNO PRVENSTVO GRADA ZAGREBA |
| 2020-07-08 | 12 | Ivan Dumbović | 6-1 6-0 | Nikola Domijan | REGIONALNO PRVENSTVO GRADA ZAGREBA |
| 2020-07-08 | 12 | Ivan Dumbović | 6-3 6-2 | Alex Bauer Minkara | REGIONALNO PRVENSTVO GRADA ZAGREBA |
| 2020-07-08 | 12 | Dumbović/Šarić | 6-0 6-4 | Maraković/Palčić | REGIONALNO PRVENSTVO GRADA ZAGREBA |
| 2020-07-08 | 12 | Dumbović/Šarić | 6-1 6-1 | Dvoršek/Potočnjak | REGIONALNO PRVENSTVO GRADA ZAGREBA |
| 2020-06-06 | 14 | Ivan Dumbović | 6-0 6-1 | Domagoj Hainš | REGIONALNO PRVENSTVO GRADA ZAGREBA |
| 2020-02-03 | 12 | Ivan Dumbović | 7-5 3-0 RET. | Ivon Jovanović | DVORANSKI BABOLAT ZAGI KUP |
| 2020-02-02 | 12 | Ivan Dumbović | 4-6 6-2 6-3 | Josip Vukić | DVORANSKI BABOLAT ZAGI KUP |
| 2020-02-02 | 12 | Ivan Dumbović | 7-6(1) 4-6 6-3 | Marko Grbić | DVORANSKI BABOLAT ZAGI KUP |
| 2020-02-01 | 12 | Ivan Dumbović | 6-1 6-1 | Karlo Lav Bulatović | DVORANSKI BABOLAT ZAGI KUP |
| 2020-01-25 | 14 | Ivan Dumbović | 6-1 6-0 | Andrey Pikulin | DVORANSKO OP PONIKVE |
| 2020-01-19 | 12 | Ivan Dumbović | 3-6 6-1 6-1 | Bruno Terze | DVORANSKO OP OGULINA - TT CUP |
| 2020-01-19 | 12 | Ivan Dumbović | 6-4 6-2 | Ivan Hasan | DVORANSKO OP OGULINA - TT CUP |
| 2020-01-18 | 12 | Ivan Dumbović | 6-0 6-0 | Luka Basar | DVORANSKO OP OGULINA - TT CUP |
| 2020-01-18 | 12 | Ivan Dumbović | 6-0 6-1 | Matej Dragičević | DVORANSKO OP OGULINA - TT CUP |
| 2020-01-12 | 12 | Ivan Dumbović | 6-1 6-0 | Matej Kukrika | HRVATSKI TELEKOM DVORANSKO PRVENSTVO HRVATSKE - DJEČACI |
| 2020-01-12 | 12 | Dumbović/Zorica | 2-6 6-2 10/8 | Erceg/Jovanović | HRVATSKI TELEKOM DVORANSKO PRVENSTVO HRVATSKE - DJEČACI |
| 2020-01-07 | 12 | Ivan Dumbović | 6-2 6-3 | DARIO ZORICA | DVORANSKO OP PONIKVE |
| 2020-01-07 | 12 | Ivan Dumbović | 6-2 4-6 6-3 | Marko Erceg | DVORANSKO OP PONIKVE |
| 2020-01-07 | 12 | Ivan Dumbović | 6-2 6-1 | Noa Palčić | DVORANSKO OP PONIKVE |
| 2020-01-07 | 12 | Ivan Dumbović | 6-0 6-0 | Ivano Ilić | DVORANSKO OP PONIKVE |
| 2019-12-15 | 12 | Ivan Dumbović | 2-6 7-6(6) 7-5 | Roko Tadić | DVORANSKO OP TK OGULIN |
| 2019-12-14 | 12 | Ivan Dumbović | 6-0 6-0 | Roman Salopek | DVORANSKO OP TK OGULIN |
| 2019-12-07 | 12 | Ivan Dumbović | 6-3 6-4 | Edon Hulaj | DVORANSKI BABOLAT ZAGI KUP |
| 2019-11-30 | 12 | Ivan Dumbović | 6-2 6-1 | Ryan Zuberbuhler | DVORANSKO OP TK OLIMPIJA 1984 |
| 2019-11-24 | 12 | Ivan Dumbović | 7-5 6-2 | Hrvoje Jutreša | DVORANSKO OP OGULINA |
| 2019-11-23 | 12 | Ivan Dumbović | 6-2 1-6 6-2 | Fatih Halilagiďż˝ | DVORANSKO OP OGULINA |
| 2019-11-11 | 12 | Ivan Dumbović | 6-0 6-1 | Noa Pasarić | DVORANSKI BABOLAT ZAGI KUP |
| 2019-11-10 | 12 | Ivan Dumbović | 6-2 6-2 | Andreas Kažinić | DVORANSKI BABOLAT ZAGI KUP |
| 2019-11-10 | 12 | Ivan Dumbović | 6-1 6-2 | Lucian Lacković | DVORANSKI BABOLAT ZAGI KUP |
| 2019-11-04 | 12 | Ivan Dumbović | 6-2 6-3 | Noa Palčić | DVORANSKO OP TK PONIKVE |
| 2019-11-03 | 12 | Ivan Dumbović | 6-2 6-2 | Karlo Lav Bulatović | DVORANSKO OP TK PONIKVE |
| 2019-10-27 | 12 | Ivan Dumbović | 6-3 6-3 | Noa Palčić | DVORANSKO OP TK OGULIN |
| 2019-10-26 | 12 | Ivan Dumbović | 6-1 6-2 | Ivano Ilić | DVORANSKO OP TK OGULIN |
| 2019-10-20 | 12 | Ivan Dumbović | 6-7(4) 6-4 6-2 | Jan Markan | DVORANSKI BABOLAT ZAGI KUP |
| 2019-10-20 | 12 | Ivan Dumbović | 6-3 3-6 6-2 | Jan Mahmet | DVORANSKI BABOLAT ZAGI KUP |
| 2019-10-13 | 12 | Ivan Dumbović | 2-6 6-3 6-3 | Borna Filip Rosenzweig | 22. OP OPATIJE |
| 2019-10-13 | 12 | Ivan Dumbović | 6-3 6-2 | Diego Martinović | 22. OP OPATIJE |
| 2019-10-13 | 12 | Dumbović/Zorica | W.O. | Ferega/Mikulec | 22. OP OPATIJE |
| 2019-10-12 | 12 | Ivan Dumbović | 6-1 6-1 | Artur Šćulac | 22. OP OPATIJE |
| 2019-07-05 | 12 | Ivan Dumbović | 3-6 7-6(3) 6-2 | Jan Markan | OP VELIKE GORICE |
| 2019-07-05 | 12 | Dumbović/Rosenzweig | 3-6 7-6(4) 10/6 | Maraković/Palčić | OP VELIKE GORICE |
| 2019-07-04 | 12 | Ivan Dumbović | 6-1 6-4 | Deni Brozović | OP VELIKE GORICE |
| 2019-07-04 | 12 | Ivan Dumbović | 6-1 6-1 | Luka Ferega | OP VELIKE GORICE |
| 2019-07-04 | 12 | Dumbović/Rosenzweig | 6-0 7-5 | Markan/Tomčić | OP VELIKE GORICE |
| 2019-07-03 | 12 | Ivan Dumbović | 6-0 6-1 | Karlo Lav Bulatović | OP VELIKE GORICE |
| 2019-07-03 | 12 | Dumbović/Rosenzweig | 6-2 6-4 | Beljan/Bulatović | OP VELIKE GORICE |
| 2019-06-19 | 12 | Ivan Dumbović | 6-0 6-1 | Niko Klaričić | VINDI KUP |
| 2019-06-17 | 12 | Ivan Dumbović | 6-2 6-4 | Ivon Jovanović | VINDI KUP |
| 2019-06-17 | 12 | Ivan Dumbović | 6-1 6-2 | Jan Mahmet | VINDI KUP |
| 2019-06-16 | 12 | Ivan Dumbović | 6-0 6-0 | Gabrijel Nađ | VINDI KUP |
| 2019-06-16 | 12 | Ivan Dumbović | 6-4 6-3 | Juraj Horvat | VINDI KUP |
| 2019-06-16 | 12 | Aiassa/Dumbović | 4-6 7-5 10/2 | Klaričić/Šagovac | VINDI KUP |
| 2019-06-15 | 12 | Ivan Dumbović | 6-1 6-1 | Luka Klepec | VINDI KUP |
| 2019-06-15 | 12 | Ivan Dumbović | 7-5 6-1 | Niko Klaričić | VINDI KUP |
| 2019-06-11 | 12 | Ivan Dumbović | 6-3 7-5 | Vito Cerezin | OP TK VRBOVEC |
| 2019-06-10 | 12 | Ivan Dumbović | 6-3 6-2 | Mauro Mavračić | OP TK VRBOVEC |
| 2019-06-10 | 12 | Ivan Dumbović | 6-2 6-4 | Ivan Maraković | OP TK VRBOVEC |
| 2019-06-09 | 12 | Ivan Dumbović | 6-1 6-0 | Juraj Kodrić | OP TK VRBOVEC |
| 2019-06-08 | 12 | Ivan Dumbović | 6-0 6-1 | Marin Samodol | OP TK VRBOVEC |
| 2019-06-08 | 12 | Ivan Dumbović | 6-2 7-6(5) | Marko Grbić | OP TK VRBOVEC |
| 2019-06-03 | 12 | Ivan Dumbović | 6-0 7-6(3) | Niko Klaričić | OP TK PONIKVE |
| 2019-06-02 | 12 | Ivan Dumbović | 6-4 7-6(4) | Fabijan Kufner | OP TK PONIKVE |
| 2019-06-02 | 12 | Dumbović/Zorica | 3-6 6-1 13/11 | Klaričić/Mahmet | OP TK PONIKVE |
| 2019-06-01 | 12 | Ivan Dumbović | 6-0 6-0 | Nikola Domijan | OP TK PONIKVE |
| 2019-05-27 | 12 | Ivan Dumbović | 6-1 4-6 6-3 | Hrvoje Jutreša | PURGER KUP |
| 2019-05-26 | 12 | Ivan Dumbović | 6-3 6-3 | Jan Mahmet | PURGER KUP |
| 2019-05-26 | 12 | Ivan Dumbović | 6-2 6-1 | Niko Kovačević | PURGER KUP |
| 2019-05-25 | 12 | Ivan Dumbović | 6-3 6-0 | Roko Klisović | PURGER KUP |
| 2019-05-25 | 12 | Dumbović/Hasan | 7-5 6-1 | Bokun/Fattorini | PURGER KUP |
| 2019-05-16 | 12 | Ivan Dumbović | 6-3 6-0 | Vito Cerezin | PRVENSTVO HRVATSKE DO 12 GODINA |
| 2019-05-16 | 12 | Dumbović/Jovanović | 6-1 6-4 | Smolčić/Stipetić | PRVENSTVO HRVATSKE DO 12 GODINA |
| 2019-05-16 | 12 | Dumbović/Jovanović | 2-6 6-2 10/6 | Sučić/Terze | PRVENSTVO HRVATSKE DO 12 GODINA |
| 2019-04-22 | 12 | Ivan Dumbović | 6-0 6-0 | Matej Kukrika | OP TK SAMOBOR 1890 |
| 2019-04-21 | 12 | Dumbović/Jovanović | 6-0 6-3 | Klaričić/Šagovac | OP TK SAMOBOR 1890 |
| 2019-04-21 | 12 | Ivan Dumbović | 6-3 6-1 | Tom Anđelković | OP TK SAMOBOR 1890 |
| 2019-04-14 | 12 | Ivan Dumbović | 6-3 6-3 | Ivan Viggo Fattorini | GRILLOV MEMORIJAL |
| 2019-04-14 | 12 | Božičević/Dumbović | 6-2 6-4 | Markan/Tadić | GRILLOV MEMORIJAL |
| 2019-04-09 | 12 | Ivan Dumbović | 7-5 6-2 | Noa Pasarić | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2019-04-08 | 12 | Božičević/Dumbović | 6-3 6-4 | Kukrika/Štih | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2019-04-08 | 12 | Ivan Dumbović | 6-1 6-3 | Jan Mahmet | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2019-04-08 | 12 | Ivan Dumbović | 2-6 7-6(5) 6-0 | Ivan Maraković | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2019-04-07 | 12 | Ivan Dumbović | 6-3 2-6 7-5 | Ivan Viggo Fattorini | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2019-04-07 | 12 | Ivan Dumbović | W.O. | Niko Šarić | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2019-04-06 | 12 | Ivan Dumbović | 6-2 6-4 | Tom Anđelković | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2019-03-31 | 12 | Ivan Dumbović | 2-6 6-3 6-2 | Domagoj Hainš | OP HRVOJE |
| 2019-03-31 | 12 | Ivan Dumbović | 6-3 6-3 | Marko Grbić | OP HRVOJE |
| 2019-03-31 | 12 | Dumbović/Trčak | 6-0 6-3 | Klaričić/Šagovac | OP HRVOJE |
| 2019-03-30 | 12 | Ivan Dumbović | 7-5 6-1 | Niko Nadali | OP HRVOJE |
| 2019-03-30 | 12 | Dumbović/Trčak | 7-6(2) 6-2 | Dubovečak/Tadić | OP HRVOJE |
| 2019-01-20 | 12 | Ivan Dumbović | 6-2 4-6 7-5 | Emanuel Ivanišević | DVORANSKI BABOLAT ZAGI KUP |
| 2019-01-20 | 12 | Ivan Dumbović | 0-6 6-4 6-2 | Mauro Mavračić | DVORANSKI BABOLAT ZAGI KUP |
| 2019-01-19 | 12 | Ivan Dumbović | 6-1 7-5 | Fatih HALILAGIĆ | DVORANSKI BABOLAT ZAGI KUP |
| 2019-01-13 | 12 | Ivan Dumbović | 6-0 6-0 | Vito Cerezin | DVORANSKO PRVENSTVO HRVATSKE DJEČACI |
| 2019-01-12 | 12 | Ivan Dumbović | 6-1 7-6(1) | Ino Horvat | DVORANSKO PRVENSTVO HRVATSKE DJEČACI |
| 2018-12-29 | 12 | Ivan Dumbović | 7-5 6-0 | Noa Pasarić | DVORANSKO OP TK PONIKVE |
| 2018-11-11 | 12 | Ivan Dumbović | 6-3 6-4 | Dario Zorica | 22. OP OPATIJE |
| 2018-11-11 | 12 | Dumbović/Zorica | 6-2 6-4 | Strel/Salković | 22. OP OPATIJE |
| 2018-11-11 | 12 | Dumbović/Zorica | 6-4 4-6 10/4 | Brusich/Martinović | 22. OP OPATIJE |
| 2018-11-10 | 12 | Ivan Dumbović | 6-4 6-4 | Leonardo Tanger | 22. OP OPATIJE |
| 2018-11-10 | 12 | Ivan Dumbović | 6-4 6-2 | Stefan Sladaković | 22. OP OPATIJE |
| 2018-10-20 | 12 | Ivan Dumbović | 6-1 6-3 | Matej Božičević | DVORANSKI BABOLAT ZAGI KUP |
| 2018-10-20 | 12 | Ivan Dumbović | 6-3 6-4 | Roko Klisović | DVORANSKI BABOLAT ZAGI KUP |
| 2018-07-05 | 12 | Ivan Dumbović | 6-3 7-5 | Lovro Šilipetar | OP VELIKE GORICE |
| 2018-07-04 | 12 | Ivan Dumbović | 6-1 6-1 | Ivon Jovanović | OP VELIKE GORICE |
| 2018-07-04 | 12 | Ivan Dumbović | 6-0 6-0 | Borna Filip Rosenzweig | OP VELIKE GORICE |
| 2018-07-01 | 12 | Dumbović/Vukić | 6-2 7-5 | Zlatevski/Štih | KUP MALOG MEDVJEDA |
| 2018-06-30 | 12 | Ivan Dumbović | 6-1 7-5 | Luka Štih | KUP MALOG MEDVJEDA |
| 2018-06-30 | 12 | Ivan Dumbović | 6-4 6-1 | Josip Vukić | KUP MALOG MEDVJEDA |
| 2018-05-27 | 12 | Dumbović/Serdarević | 6-1 6-4 | Pižurica/Zlatevski | PURGER KUP |
| 2018-05-26 | 12 | Ivan Dumbović | 6-2 6-1 | Paris Posavec | PURGER KUP |
| 2018-05-26 | 12 | Dumbović/Serdarević | 2-6 6-2 10/4 | Jovanović/Vukić | PURGER KUP |
| 2018-04-08 | 12 | Ivan DUMBOVIĆ | 6-0 6-1 | Tom ANĐELKOVIĆ | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2018-04-08 | 12 | DUMBOVIĆ/HAINŠ | 6-1 6-3 | KOVAČEVIĆ/MAVRAČIĆ | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2018-04-07 | 12 | Ivan DUMBOVIĆ | 6-0 6-4 | Fran RADOLA | REGIONALNO PRVENSTVO GRADA ZAGREB |
| 2018-04-07 | 12 | Ivan DUMBOVIĆ | 6-0 6-0 | Luka ŠTIH | REGIONALNO PRVENSTVO GRADA ZAGREB |