11.11.21 | 1/4 | Emil Ruusuvuori/Botic van de Zandschulp | Tomislav Brkic/Nikola Cacic | 3-6, 7-64, 10-8 | | match details | Stockholm | I. hard |
08.11.21 | 1st round | Tomislav Brkic/Nikola Cacic | Alexander Bublik/Andrey Golubev | 6-3, 6-1 | | match details |
27.10.21 | 1st round | Santiago Gonzalez/Andres Molteni | Tomislav Brkic/Nikola Cacic | 6-4, 2-6, 10-7 | | match details | St. Petersburg | I. hard |
24.10.21 | fin | Harri Heliovaara/Matwe Middelkoop | Tomislav Brkic/Nikola Cacic | 7-5, 4-6, 11-9 | | match details | Moscow | I. hard |
22.10.21 | 1/2 | Tomislav Brkic/Nikola Cacic | Ilya Ivashka/Pedro Martinez Portero | 6-4, 4-6, 10-8 | | match details |
21.10.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Dominic Inglot/Ken Skupski | 7-64, 5-7, 10-8 | | match details |
18.10.21 | 1st round | Tomislav Brkic/Nikola Cacic | Alexander Bublik/Adrian Mannarino | 6-2, 6-1 | | match details |
01.10.21 | 1/4 | Santiago Gonzalez/Andres Molteni | Tomislav Brkic/Nikola Cacic | 6-75, 6-2, 10-4 | | match details | Sofia | I. hard |
29.09.21 | 1st round | Tomislav Brkic/Nikola Cacic | Andrey Golubev/Aleksandr Nedovyesov | 6-3, 6-72, 10-7 | | match details |
24.09.21 | 1/2 | Hugo Nys/Arthur Rinderknech | Tomislav Brkic/Nikola Cacic | 6-3, 7-63 | | match details | Metz | I. hard |
23.09.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Hunter Reese/Sem Verbeek | 6-3, 6-3 | | match details |
22.09.21 | 1st round | Tomislav Brkic/Nikola Cacic | Marcos Giron/Albano Olivetti | 6-4, 6-73, 10-1 | | match details |
04.09.21 | 2nd round | Andrey Golubev/Andreas Mies | Tomislav Brkic/Nikola Cacic | 7-5, 6-2 | | match details | New York | Hard |
02.09.21 | 1st round | Tomislav Brkic/Nikola Cacic | Pablo Cuevas/Adrian Mannarino | 6-76, 6-2, 6-4 | | match details |
23.08.21 | 1st round | Nicolas Mahut/Fabrice Martin | Tomislav Brkic/Nikola Cacic | 6-4, 6-1 | | match details | Winston-Salem | Hard |
30.07.21 | 1/2 | Alexander Erler/Lucas Miedler | Tomislav Brkic/Nikola Cacic | 1-6, 6-1, 12-10 | | match details | Kitzbuhel | Clay |
28.07.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Rafael Matos/Andrei Vasilevski | 7-66, 2-6, 10-8 | | match details |
27.07.21 | 1st round | Tomislav Brkic/Nikola Cacic | David Pel/Arthur Rinderknech | 6-2, 6-3 | | match details |
24.07.21 | fin | Fernando Romboli/David Vega Hernandez | Tomislav Brkic/Nikola Cacic | 6-3, 7-5 | | match details | Umag | Clay |
23.07.21 | 1/2 | Tomislav Brkic/Nikola Cacic | Ivan Sabanov/Matej Sabanov | 6-1, 6-2 | | match details |
22.07.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Roman Jebavy/Jiri Vesely | 6-2, 6-2 | | match details |
21.07.21 | 1st round | Tomislav Brkic/Nikola Cacic | Duje Ajdukovic/Frane Nincevic | 6-4, 3-6, 10-8 | | match details |
14.07.21 | 1st round | Andrey Golubev/Aleksandr Nedovyesov | Tomislav Brkic/Nikola Cacic | 6-3, 7-65 | | match details | Hamburg | Clay |
05.07.21 | 3rd round | Nikola Mektic/Mate Pavic | Tomislav Brkic/Nikola Cacic | 6-2, 3-6, 7-63, 6-4 | | match details | London | Grass |
03.07.21 | 2nd round | Tomislav Brkic/Nikola Cacic | Marcus Daniell/Philipp Oswald | 6-3, 1-6, 3-418 | | match details |
02.07.21 | 1st round | Tomislav Brkic/Nikola Cacic | Egor Gerasimov/Yoshihito Nishioka | 7-61, 6-4 | | match details |
22.06.21 | 1st round | Novak Djokovic/Carlos Gomez-Herrera | Tomislav Brkic/Nikola Cacic | 5-7, 6-4, 13-11 | | match details | Mallorca | Grass |
16.06.21 | 2nd round | Kevin Krawietz/Horia Tecau | Tomislav Brkic/Nikola Cacic | 7-63, 6-3 | | match details | Halle | Grass |
14.06.21 | 1st round | Tomislav Brkic/Nikola Cacic | Dustin Brown/Jan-Lennard Struff | 4-6, 6-4, 10-7 | | match details |
08.06.21 | 1/4 | Pierre-Hugues Herbert/Nicolas Mahut | Tomislav Brkic/Nikola Cacic | 7-65, 6-1 | | match details | Paris | Clay |
05.06.21 | 3rd round | Tomislav Brkic/Nikola Cacic | Simone Bolelli/Maximo Gonzalez | 6-4, 6-4 | | match details |
03.06.21 | 2nd round | Tomislav Brkic/Nikola Cacic | Marcel Granollers/Horacio Zeballos | 6-3, 3-6, 6-3 | | match details |
02.06.21 | 1st round | Tomislav Brkic/Nikola Cacic | Alexei Popyrin/Jordan Thompson | 7-5, 6-74, 6-3 | | match details |
23.05.21 | 1st round | Ivan Sabanov/Matej Sabanov | Tomislav Brkic/Nikola Cacic | 4-6, 6-3, 10-8 | | match details | Belgrade | Clay |
20.05.21 | 1/4 | Simone Bolelli/Maximo Gonzalez | Tomislav Brkic/Nikola Cacic | 6-3, 7-67 | | match details | Geneva | Clay |
19.05.21 | 1st round | Tomislav Brkic/Nikola Cacic | Oliver Marach/Mate Pavic | 7-66, 6-2 | | match details |
28.04.21 | 1st round | Matthew Ebden/John-Patrick Smith | Tomislav Brkic/Nikola Cacic | 7-63, 7-65 | | match details | Munich | Clay |
23.04.21 | 1/2 | Ariel Behar/Gonzalo Escobar | Tomislav Brkic/Nikola Cacic | 6-3, 6-4 | | match details | Belgrade | Clay |
22.04.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Simone Bolelli/Maximo Gonzalez | 0-6, 7-67, 10-8 | | match details |
21.04.21 | 1st round | Tomislav Brkic/Nikola Cacic | Marcelo Arevalo/Matwe Middelkoop | 6-4, 7-65 | | match details |
17.04.21 | fin | Guillermo Duran/Andres Molteni | Tomislav Brkic/Nikola Cacic | 6-4, 6-4 | | match details | Belgrade Challenger | Clay |
16.04.21 | 1/2 | Tomislav Brkic/Nikola Cacic | Facundo Bagnis/Francisco Cerundolo | 6-0, 7-66 | | match details |
15.04.21 | 1st round | Tomislav Brkic/Nikola Cacic | Viktor Troicki/Miljan Zekic | 6-4, 6-2 | | match details |
15.04.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Roman Jebavy/Igor Zelenay | 7-66, 6-3 | | match details |
11.04.21 | fin | Ariel Behar/Gonzalo Escobar | Tomislav Brkic/Nikola Cacic | 6-2, 6-4 | | match details | Marbella | Clay |
09.04.21 | 1/2 | Tomislav Brkic/Nikola Cacic | Marcelo Arevalo/Matwe Middelkoop | 6-4, 6-4 | | match details |
07.04.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Marcus Daniell/Philipp Oswald | 4-6, 7-65, 11-9 | | match details |
06.04.21 | 1st round | Tomislav Brkic/Nikola Cacic | Sander Arends/David Pel | 1-6, 6-0, 10-5 | | match details |
10.03.21 | 1st round | Simone Bolelli/Maximo Gonzalez | Tomislav Brkic/Nikola Cacic | 7-67, 6-3 | | match details | Santiago | Clay |
07.03.21 | fin | Tomislav Brkic/Nikola Cacic | Ariel Behar/Gonzalo Escobar | 6-3, 7-5 | | match details | Buenos Aires | Clay |
05.03.21 | 1/2 | Tomislav Brkic/Nikola Cacic | Dominik Koepfer/Joao Sousa | 3-6, 7-65, 10-5 | | match details |
04.03.21 | 1/4 | Tomislav Brkic/Nikola Cacic | Andre Goransson/Thiago Moura Monteiro | Andre Goransson/Thiago Moura Monteiro - walk over | | match details |
03.03.21 | 1st round | Tomislav Brkic/Nikola Cacic | Roberto Carballes Baena/Salvatore Caruso | 6-3, 6-4 | | match details |
25.02.21 | 1st round | Facundo Bagnis/Maximo Gonzalez | Tomislav Brkic/Nikola Cacic | 7-5, 7-65 | | match details | Cordoba | Clay |