| No | Date | Nom et lieu du tournoi | Catégorie | Dotation | Surface | Vainqueurs | Finalistes | Score | |
|---|
| 1 | 14-05-1990 | Yugoslav Open, Umag | World Series | 147 500 $ | Terre (ext.) | Vojtěch Flégl
Daniel Vacek | Andreï Cherkasov
Andreï Olhovskiy | 6-4, 6-4 | |
| 2 | 13-05-1991 | Yugoslav Open, Umag | World Series | 215 000 $ | Terre (ext.) | Gilad Bloom
Javier Sánchez | Richey Reneberg
David Wheaton | 7-6, 2-6, 6-1 | |
| 3 | 24-08-1992 | Croatia Open, Umag | World Series | 235 000 $ | Terre (ext.) | David Prinosil
Richard Vogel | Sander Groen
Lars Koslowski | 6-3, 6-7, 7-6 | |
| 4 | 23-08-1993 | Croatia Open, Umag | World Series | 275 000 $ | Terre (ext.) | Filip Dewulf
Tom Vanhoudt | Jordi Arrese
Francisco Roig | 6-4, 7-5 | |
| 5 | 22-08-1994 | Croatia Open, Umag | World Series | 375 000 $ | Terre (ext.) | Diego Pérez
Francisco Roig | Karol Kučera
Paul Wekesa | 6-2, 6-4 | |
| 6 | 21-08-1995 | Croatia Open, Umag | World Series | 375 000 $ | Terre (ext.) | Luis Lobo
Javier Sánchez | David Ekerot
László Markovits | 6-4, 6-0 | |
| 7 | 12-08-1996 | Croatia Open, Umag | World Series | 375 000 $ | Terre (ext.) | Pablo Albano
Luis Lobo | Ģirts Dzelde
Udo Plamberger | 6-4, 6-1 | |
| 8 | 21-07-1997 | Croatia Open, Umag | World Series | 375 000 $ | Terre (ext.) | Dinu Pescariu
Davide Sanguinetti | Dominik Hrbatý
Karol Kučera | 7-6, 6-4 | |
| 9 | 27-07-1998 | Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | Neil Broad
Piet Norval | Jiří Novák
David Rikl | 6-1, 3-6, 6-3 | |
| 10 | 26-07-1999 | Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | Mariano Puerta
Javier Sánchez | Massimo Bertolini
Cristian Brandi | 3-6, 6-2, 6-3 | |
| 11 | 17-07-2000 | Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | Álex López Morón
Albert Portas | Ivan Ljubičić
Lovro Zovko | 6-1, 7-62 | Tableau |
| 12 | 16-07-2001 | Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | Sergio Roitman
Andrés Schneiter | Ivan Ljubičić
Lovro Zovko | 6-2, 7-5 | Tableau |
| 13 | 15-07-2002 | Croatia Open, Umag | Int' Series | 356 000 $ | Terre (ext.) | František Čermák
Julian Knowle | Albert Portas
Fernando Vicente | 6-4, 6-4 | Tableau |
| 14 | 21-07-2003 | Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | Álex López Morón
Rafael Nadal | Todd Perry
Thomas Shimada | 6-1, 6-3 | Tableau |
| 15 | 19-07-2004 | Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | José Acasuso
Flavio Saretta | Jaroslav Levinský
David Škoch | 4-6, 6-2, 6-4 | Tableau |
| 16 | 25-07-2005 | Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | Jiří Novák
Petr Pála | Michal Mertiňák
David Škoch | 6-3, 6-3 | Tableau |
| 17 | 24-07-2006 | Studena Croatia Open, Umag | Int' Series | 375 000 $ | Terre (ext.) | Jaroslav Levinský
David Škoch | Guillermo García-López
Albert Portas | 6-4, 6-4 | Tableau |
| 18 | 23-07-2007 | Studena Croatia Open, Umag | Int' Series | 391 000 $ | Terre (ext.) | Lukáš Dlouhý
Michal Mertiňák | Jaroslav Levinský
David Škoch | 6-1, 6-1 | Tableau |
| 19 | 14-07-2008 | Studena Croatia Open, Umag | Int' Series | 305 000 € | Terre (ext.) | Michal Mertiňák
Petr Pála | Carlos Berlocq
Fabio Fognini | 2-6, 6-3, [10-5] | Tableau |
| 20 | 27-07-2009 | Studena Croatia Open, Umag | ATP 250 | 398 250 € | Terre (ext.) | František Čermák
Michal Mertiňák | Johan Brunström
Jean-Julien Rojer | 6-4, 6-4 | Tableau |
| 21 | 26-07-2010 | Studena Croatia Open, Umag | ATP 250 | 398 250 € | Terre (ext.) | Leoš Friedl
Filip Polášek | František Čermák
Michal Mertiňák | 6-3, 7-67 | Tableau |
| 22 | 25-07-2011 | Studena Croatia Open, Umag | ATP 250 | 398 250 € | Terre (ext.) | Simone Bolelli
Fabio Fognini | Marin Čilić
Lovro Zovko | 6-3, 5-7, [10-7] | Tableau |
| 23 | 09-07-2012 | Vegeta Croatia Open, Umag | ATP 250 | 358 425 € | Terre (ext.) | David Marrero
Fernando Verdasco | Marcel Granollers
Marc López | 6-3, 7-64 | Tableau |
| 24 | 22-07-2013 | Vegeta Croatia Open, Umag | ATP 250 | 410 200 € | Terre (ext.) | Martin Kližan
David Marrero | Nicholas Monroe
Simon Stadler | 6-1, 5-7, [10-7] | Tableau |
| 25 | 21-07-2014 | Vegeta Croatia Open, Umag | ATP 250 | 426 605 € | Terre (ext.) | František Čermák
Lukáš Rosol | Dušan Lajović
Franko Škugor | 6-4, 7-65 | Tableau |
| 26 | 20-07-2015 | Konzum Croatia Open Umag, Umag | ATP 250 | 439 405 € | Terre (ext.) | Máximo González
André Sá | Mariusz Fyrstenberg
Santiago González | 4-6, 6-3, [10-3] | Tableau |
| 27 | 18-07-2016 | Konzum Croatia Open Umag, Umag | ATP 250 | 463 520 € | Terre (ext.) | Martin Kližan
David Marrero | Nikola Mektić
Antonio Šančić | 6-4, 6-2 | Tableau |
| 28 | 17-07-2017 | Plava Laguna Croatia Open, Umag | ATP 250 | 482 060 € | Terre (ext.) | Guillermo Durán
Andrés Molteni | Marin Draganja
Tomislav Draganja | 6-3, 64-7, [10-6] | Tableau |
| 29 | 16-07-2018 | Plava Laguna Croatia Open, Umag | ATP 250 | 501 345 € | Terre (ext.) | Robin Haase
Matwé Middelkoop | Roman Jebavý
Jiří Veselý | 6-4, 6-4 | Tableau |
| 30 | 15-07-2019 | Plava Laguna Croatia Open, Umag | ATP 250 | 524 340 € | Terre (ext.) | Robin Haase
Philipp Oswald | Oliver Marach
Jürgen Melzer | 7-5, 62-7, [14-12] | Tableau |
| 31 | 19-07-2021 | Plava Laguna Croatia Open, Umag | ATP 250 | 419 470 € | Terre (ext.) | Fernando Romboli
David Vega Hernández | Tomislav Brkić
Nikola Čačić | 6-3, 7-5 | Tableau |
| 32 | 19-07-2022 | Plava Laguna Croatia Open, Umag | ATP 250 | 534 555 € | Terre (ext.) | Simone Bolelli
Fabio Fognini | Lloyd Glasspool
Harri Heliövaara | 5-7, 7-66, [10-7] | Tableau |
| 33 | 24-07-2023 | Plava Laguna Croatia Open, Umag | ATP 250 | 562 815 € | Terre (ext.) | Blaž Rola
Nino Serdarušić | Simone Bolelli
Andrea Vavassori | 4-6, 7-62, [15-13] | Tableau |
| 34 | 22-07-2024 | Plava Laguna Croatia Open, Umag | ATP 250 | 579 320 € | Terre (ext.) | Guido Andreozzi
Miguel Ángel Reyes-Varela | Manuel Guinard
Grégoire Jacq | 6-4, 6-2 | Tableau |
| 35 | 20-07-2025 | Plava Laguna Croatia Open, Umag | ATP 250 | 596 035 € | Terre (ext.) | Romain Arneodo
Manuel Guinard | Patrik Trhac
Marcus Willis | 7-5, 7-62 | Tableau |