2010–2014: Top 300 in singles

Ćaćić competed both in singles and doubles events, mainly on ITF Men's Circuit and ATP Challenger Tour level.

Having played alongside his compatriots, including Marko Djokovic, Ilija Bozoljac and Dušan Lajović, he has also taken part in three ATP World Tour main doubles tournaments held in Belgrade (in 2010 and 2012) and Umag (in 2012), where he lost in the opening rounds.

In the summer of 2014, after a series of successful appearances in Challenger tournaments played on a clay surface, and thanks to his first victory in three years in a Futures event, Ćaćić moved into the top 300 and achieved his career-high ATP singles ranking of No. 281.

2015

Ćaćić did not participate in any tournament during the 2015 season due to injury, which caused a drop from both world singles and doubles rankings.

2016

He recorded his first win on ATP World Tour level in the first round of Croatia Open, where he defeated Aljaž Bedene in three sets, ranked 69th at the time.

2019: First doubles title and Top 100 debut, Serbian No. 1 in doubles

In the summer of 2019, he won his first ATP Challenger title at the Shkymkent Challenger with Yang Tsung-hua.

Later that year he won his first ATP tour level doubles title, alongside his compatriot Dušan Lajović at the Chengdu Open, edging out the No. 4 seeds, Jonathan Erlich and Fabrice Martin, 7–6^(11–9), 3–6, [10–3]. As a result, he reached the top 100 on 30 September 2019.

2020: Inaugural ATP Cup champion, Second doubles title

In January, he was part of Serbian team that won inaugural 2020 ATP Cup by defeating Spain in the final.

In February, he won his second ATP Tour title in Lyon, partnering Mate Pavić.

2021: Third doubles title, French Open quarterfinal, Three more finals, top 35

He partnered with Tomislav Brkić and won the doubles title at the ATP Buenos Aires, which was only their second tournament as a team. After that they reached the finals of Andalucía Open and semifinals at Serbia Open. Following these great result he entered the top 50 in doubles at a career-high ATP doubles ranking of No. 48, on 26 April 2021.

The pair also reached the quarterfinals of the 2021 French Open for their best showing in their careers defeating fourth seeds Marcel Granollers/Horacio Zeballos and Máximo González/Simone Bolelli en route.

On 8 November 2021, Cacic reached a career high of World No. 35 in doubles.

2022: Masters 1000 quarterfinal

He reached the quarterfinals at the 2022 Mutua Madrid Open with partner Brkic where they lost to eventual champions and seventh seeded pair of Wesley Koolhof and Neal Skupski.

2023: Australian Open third round, Davis Cup quarterfinal

Partnering Aisam-ul-Haq Qureshi he reached the third round at the 2023 Australian Open where they lost to top seeds Wesley Koolhof and Neal Skupski.

In April, partnering Miomir Kecmanović, Cacic reached the final of the 2023 Estoril Open, where they were defeated by the fourth seeded pair of Sander Gillé and Joran Vliegen.^[2]

In July, partnering Victor Vlad Cornea, Cacic reached the semifinals of the Hamburg Open, where they were defeated by third seeds and eventual champions Tim Pütz and Kevin Krawietz.^[3]

In September, during the Davis Cup Finals in Valencia, Cacic partnered with Miomir Kecmanović and it was the Serbian Davis Cup team that emerged victorious against South Korean pair Song Min-kyu and Nam Ji-sung, same duo they fell to last year.^[4] In the tie against Spain, paired again with Kecmanović, they won in straight sets against Alejandro Davidovich Fokina and Marcel Granollers, helping Serbia win the tie 3:0 and reach the Davis Cup quarterfinals.^[5] In October, again partnering Victor Vlad Cornea, Cacic reached the quarterfinals in Basel, by defeating Swiss duo Mika Brunold and Marc-Andrea Hüsler in straight sets, before losing to fourth seeds Jamie Murray and Michael Venus.^[6]

2024: United Cup debut

Partnering with compatriot Dejana Radanović he made his debut at the 2024 United Cup as part of team Serbia.

Doubles

Mixed doubles

Doubles: 7 (3 titles, 4 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Sep 2019	Chengdu Open, China	250 Series	Hard	Dušan Lajović	Jonathan Erlich Fabrice Martin	7–6(11–9), 3–6, [10–3]
Win	2–0	Feb 2020	Open Sud de France, France	250 Series	Hard (i)	Mate Pavić	Aisam-ul-Haq Qureshi Dominic Inglot	6–4, 6–7(4–7), [10–4]
Win	3–0	Mar 2021	Argentina Open, Argentina	250 Series	Clay	Tomislav Brkić	Ariel Behar Gonzalo Escobar	6–3, 7–5
Loss	3–1	Apr 2021	Andalucía Open, Spain	250 Series	Clay	Tomislav Brkić	Ariel Behar Gonzalo Escobar	2–6, 4–6
Loss	3–2	Jul 2021	Croatia Open, Croatia	250 Series	Clay	Tomislav Brkić	Fernando Romboli David Vega Hernández	3–6, 5–7
Loss	3–3	Oct 2021	Kremlin Cup, Russia	250 Series	Hard (i)	Tomislav Brkić	Harri Heliövaara Matwé Middelkoop	5–7, 6–4, [9–11]
Loss	3–4	Apr 2023	Estoril Open, Portugal	250 Series	Clay	Miomir Kecmanović	Sander Gillé Joran Vliegen	3–6, 4–6

Singles: 10 (5 titles, 5 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Jan 2011	Israel F3, Eilat	Futures	Hard	Ádám Kellner	2–6, 5–7
Win	1–1	Jun 2011	Serbia F1, Belgrade	Futures	Clay	Axel Michon	6–3, 6–0
Win	2–1	Aug 2011	Croatia F7, Vinkovci	Futures	Clay	Dino Marcan	7–6(8–6), 6–0
Loss	2–2	Feb 2012	Russia F4, Yoshkar-Ola	Futures	Hard (i)	Evgeny Kirillov	6–7(3–7), 6–7(3–7)
Loss	2–3	Nov 2012	Greece F7, Heraklion	Futures	Carpet	Mate Delić	4–6, 6–7(3–7)
Loss	2–4	Nov 2013	Greece F20, Rethymno	Futures	Hard	Oliver Golding	4–6, 6–7(4–7)
Win	3–4	Aug 2014	Romania F13, Brașov	Futures	Clay	Frederico Ferreira Silva	6–4, 4–6, 7–5
Win	4–4	May 2016	Croatia F6, Bol	Futures	Clay	Péter Nagy	7–5, 6–4
Win	5–4	Nov 2017	Tunisia F35, Hammamet	Futures	Clay	Carlos Boluda-Purkiss	6–1, 6–2
Loss	5–5	Dec 2017	Turkey F46, Antalya	Futures	Clay	Tomislav Brkić	6–7(2–7), 6–2, 6–7(7–9)

Doubles: 59 (37 titles, 22 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Jun 2008	Serbia F2, Belgrade	Futures	Clay	Dušan Lajović	David Savić Miljan Zekić	7–6(8–6), 3–6, [10–8]
Loss	1–1	Oct 2010	Turkey F10, Antalya	Futures	Hard	Tomislav Brkić	Artem Smirnov Róbert Varga	4–6, 4–6
Loss	1–2	Jan 2011	Israel F2, Eilat	Futures	Hard	Steven Diez	Damir Džumhur Ismar Gorčić	3–6, 4–6
Win	2–2	Apr 2011	Turkey F12, Antalya	Futures	Hard	Jozef Kovalík	David Rice Sean Thornley	4–6, 6–4, [10–4]
Win	3–2	May 2011	Bosnia & Herzegovina F2, Sarajevo	Futures	Clay	Miljan Zekić	Rok Jarc Tom Kočevar-Dešman	6–3, 6–4
Win	4–2	May 2011	Bosnia & Herzegovina F3, Brčko	Futures	Clay	Toni Androić	Marko Rajić Saša Vidojević	6–2, 6–3
Win	5–2	May 2011	Bosnia & Herzegovina F4, Prijedor	Futures	Clay	Toni Androić	Rok Jarc Tom Kočevar-Dešman	6–3, 6–2
Win	6–2	Jun 2011	Bosnia & Herzegovina F5, Kiseljak	Futures	Clay	Toni Androić	Damir Džumhur Ismar Gorčić	7–5, 6–4
Win	7–2	Jun 2011	Serbia F1, Belgrade	Futures	Clay	Goran Tošić	Nemanja Kontić Arsenije Zlatanović	6–0, 3–6, [10–7]
Loss	7–3	Jun 2011	Serbia F2, Belgrade	Futures	Clay	Goran Tošić	Damir Džumhur Aldin Šetkić	6–2, 6–7(4–7), [6–10]
Loss	7–4	Jul 2011	Serbia F4, Kikinda	Futures	Clay	Goran Tošić	Mislav Hižak Ante Pavić	5–7, 5–7
Win	8–4	Aug 2011	Serbia F5, Sombor	Futures	Clay	Goran Tošić	Ivan Bjelica Vladimir Obradović	6–3, 6–4
Loss	8–5	Aug 2011	Serbia F7, Novi Sad	Futures	Clay	Damir Džumhur	Ivan Bjelica David Savić	7–5, 1–6, [5–10]
Win	9–5	Oct 2011	Croatia F10, Umag	Futures	Clay	Toni Androić	Marin Draganja Dino Marcan	2–6, 7–5, [10–4]
Win	10–5	Jan 2012	Turkey F2, Antalya	Futures	Hard	Toni Androić	Patrik Brydolf Florian Reynet	6–3, 6–2
Loss	10–6	Mar 2012	Italy F1, Trento	Futures	Hard (i)	Damir Džumhur	Marco Crugnola Claudio Grassi	4–6, 4–6
Win	11–6	Jun 2012	Serbia F1, Belgrade	Futures	Clay	Goran Tošić	Danilo Petrović Milan Pokrajac	6–4, 6–4
Win	12–6	Jun 2012	Serbia F2, Belgrade	Futures	Clay	Goran Tošić	Juan Lizariturry Enrique López Pérez	6–2, 6–4
Win	13–6	Sep 2012	Germany F17, Hambach	Futures	Carpet (i)	Adrian Sikora	Pirmin Hänle Matt Simpson	6–2, 6–3
Win	14–6	Nov 2012	Greece F6, Heraklion	Futures	Carpet	Mate Delić	Julien Dubail Yannick Vandenbulcke	7–5, 6–2
Win	15–6	Nov 2012	Greece F7, Heraklion	Futures	Carpet	Mate Delić	Enzo Couacaud Julien Dubail	6–1, 6–2
Win	16–6	Feb 2013	France F3, Feucherolles	Futures	Hard (i)	Miljan Zekić	Stephan Fransen Wesley Koolhof	3–6, 7–5, [10–8]
Win	17–6	Apr 2013	Italy F5, Vicenza	Futures	Clay	Damir Džumhur	Alessandro Motti Matteo Volante	6–3, 6–4
Loss	17–7	Aug 2013	Serbia F10, Novi Sad	Futures	Clay	Denis Bejtulahi	Boris Čonkić Matteo Fago	6–7(4–7), 2–6
Loss	17–8	Sep 2013	Serbia F11, Zlatibor	Futures	Clay	Denis Bejtulahi	Duje Kekez Ilija Vučić	3–6, 4–6
Loss	17–9	Nov 2013	Greece F20, Rethymno	Futures	Hard	Alexandros Jakupovic	Lewis Burton Marcus Willis	4–6, 6–7(5–7)
Loss	17–10	Feb 2014	Italy F1, Sondrio	Futures	Hard (i)	Ilija Vučić	Roman Jebavý Robin Staněk	6–3, 5–7, [7–10]
Loss	17–11	Mar 2014	Greece F1, Heraklion	Futures	Hard	Ilija Vučić	Oliver Golding Alexandros Jakupovic	1–6, 6–3, [5–10]
Win	18–11	Mar 2014	Greece F2, Heraklion	Futures	Hard	Ilija Vučić	Jan Hernych Robin Staněk	7–6(7–1), 7–5
Win	19–11	May 2014	Bosnia & Herzegovina F1, Doboj	Futures	Clay	Tomislav Brkić	Ivan Milivojević Bojan Zdravković	6–1, 6–3
Win	20–11	May 2014	Bosnia & Herzegovina F2, Prijedor	Futures	Clay	Tomislav Brkić	Darko Jandrić Ante Marinčić	6–3, 6–2
Win	21–11	May 2014	Bosnia & Herzegovina F3, Brčko	Futures	Clay	Marko Tepavac	Nikola Ćirić Danilo Petrović	6–4, 1–6, [10–1]
Win	22–11	Jan 2016	USA F3, Plantation	Futures	Clay	Denis Bejtulahi	Nick Chappell Raleigh Smith	3–6, 6–3, [10–7]
Win	23–11	Jan 2017	USA F3, Plantation	Futures	Clay	Tomislav Brkić	Jaume Pla Malfeito Miguel Semmler	4–6, 6–1, [10–3]
Loss	23–12	Jan 2017	USA F4, Sunrise	Futures	Clay	Tomislav Brkić	Peter Torebko Bastian Trinker	6–7(3–7), 6–4, [7–10]
Win	24–12	Feb 2017	Tunisia F7, Hammamet	Futures	Clay	Tomislav Brkić	Oscar José Gutierrez Nicolas Santos	6–3, 6–2
Win	25–12	Jun 2017	Hungary F4, Gyula	Futures	Clay	Scott Puodziunas	Levente Gödry Péter Nagy	7–6(7–2), 6–2
Loss	25–13	Jul 2017	Turkey F25, Istanbul	Futures	Clay	Vasko Mladenov	Miki Janković Dimitar Kuzmanov	4–6, 6–2, [9–11]
Win	26–13	Jul 2017	Turkey F29, Mersin	Futures	Clay	Bernardo Saraiva	Bogdan Bobrov Goran Marković	6–2, 3–6, [11–9]
Win	27–13	Oct 2017	Turkey F38, Antalya	Futures	Clay	Dmitry Popko	Peter Torebko Jeroen Vanneste	6–1, 6–4
Win	28–13	Nov 2017	Tunisia F34, Hammamet	Futures	Clay	Nino Serdarušić	Marc Giner Jaume Pla Malfeito	6–2, 6–1
Win	29–13	Nov 2017	Tunisia F35, Hammamet	Futures	Clay	Nino Serdarušić	Moez Echargui Anis Ghorbel	7–5, 6–3
Win	30–13	Dec 2017	Turkey F45, Antalya	Futures	Clay	Luca Margaroli	Gökberk Ergeneman Khumoyun Sultanov	7–5, 6–2
Win	31–13	Dec 2017	Turkey F46, Antalya	Futures	Clay	Luca Margaroli	Ivan Gakhov Alexander Pavlioutchenkov	6–3, 7–6(7–1)
Win	32–13	Mar 2018	Turkey F8, Antalya	Futures	Hard	Maciej Smoła	Michiel de Krom Ryan Nijboer	6–3, 6–4
Loss	32–14	Apr 2018	Uzbekistan F1, Bukhara	Futures	Hard	Luca Margaroli	Alexander Pavlioutchenkov Evgenii Tiurnev	6–7(4–7), 7–6(7–5), [8–10]
Loss	32–15	Jun 2018	Poprad-Tatry, Slovakia	Challenger	Clay	Luca Margaroli	Tomislav Brkić Ante Pavić	3–6, 6–4, [14–16]
Loss	32–16	Aug 2018	Portorož, Slovenia	Challenger	Hard	Lucas Miedler	Gerard Granollers Pujol Lukáš Rosol	5–7, 3–6
Loss	32–17	May 2019	Rome, Italy	Challenger	Clay	Adam Pavlásek	Philipp Oswald Filip Polášek	w/o
Win	33–17	Jun 2019	Shymkent, Kazakhstan	Challenger	Clay	Yang Tsung-hua	André Göransson Marc-Andrea Hüsler	6–4, 6–4
Loss	33–18	Jun 2019	Fergana, Uzbekistan	Challenger	Hard	Yang Tsung-hua	Evan King Hunter Reese	3–6, 7–5, [4–10]
Loss	33–19	Aug 2019	Liberec, Czech Republic	Challenger	Clay	Antonio Šančić	Jonáš Forejtek Michael Vrbenský	4–6, 3–6
Loss	33–20	Aug 2019	Cordenons, Italy	Challenger	Clay	Antonio Šančić	Tomislav Brkić Ante Pavić	2–6, 3–6
Win	34–20	Nov 2019	Ortisei, Italy	Challenger	Hard (i)	Antonio Šančić	Sander Arends David Pel	6–7(5–7), 7–6(7–3), [10–7]
Win	35–20	Jan 2020	Bendigo, Australia	Challenger	Hard	Denys Molchanov	Marcelo Arévalo Jonny O'Mara	7–6(7–3), 6–4
Win	36–20	Sep 2020	Forlì, Italy	Challenger	Clay	Tomislav Brkić	Andrey Golubev Andrea Vavassori	3–6, 7–5, [10–3]
Loss	36–21	Apr 2021	Belgrade, Serbia	Challenger	Clay	Tomislav Brkić	Guillermo Durán Andrés Molteni	4–6, 4–6
Win	37–21	Oct 2022	Parma, Italy	Challenger	Clay	Tomislav Brkić	Luis David Martínez Igor Zelenay	6–2, 6–2
Loss	37–22	Apr 2023	Sanremo, Italy	Challenger	Clay	Marcelo Demoliner	Victor Vlad Cornea Franko Škugor	2–6, 3–6