2001–2002: Juniors

As a junior Gabashvili posted a singles win–loss record of 38–34 (47–29 in doubles) and reached as high as no. 33 in the junior world singles rankings (and no. 40 in doubles) in January 2002.

Junior Slam results:

Australian Open: 3R (2002)
French Open: 1R (2001, 2002)
Wimbledon: 1R (2002)
US Open: 2R (2001)

2003–2006: ATP debut

Gabashvili made his ATP tour debut in 2004 in Båstad, where he lost to Olivier Patience of France.

2007–2009

At Wimbledon, Gabashvili faced Roger Federer in the first round and lost.

In the first round of the 2007 US Open, Gabashvili defeated World No. 7 Fernando González in five sets. In the fourth set, Gabashvili served for the match at 5–4, but hit three consecutive double faults. He lost the game and the set, but came back in the fifth and final set to win the match.^[3]

2008 proved to be unimpressive for Gabashvili as he lost in the first round of his first four tournaments before breaking his right wrist, effectively ending his season.

In the first round of the 2009 US Open, he lost in straight sets to American Jesse Levine.

2010: French Open fourth round

In the third round of the 2010 French Open, he beat Andy Roddick in straight sets. However, he was beaten in the fourth round by Austria's Jürgen Melzer in four sets.

At the 2010 US Open, Gabashvili played World No. 1 Rafael Nadal in the first round, and lost.

2011

Gabashvili represented his country at the 2011 Summer Universiade held in Shenzhen and won a silver medal. Despite being ranked below the top 100 in the ATP rankings, Gabashvili was still by far the highest-ranked player in the singles draw, and was thus a favorite to win Gold. He advanced all the way to the singles final without dropping a set before suffering a surprising defeat at the hands of Lim Yong-Kyu, a member of South Korea's Davis Cup team.

2012–2016: Second French Open fourth round, Top 50 debut and career-high ranking

At the 2015 French Open, Gabashvili repeated his 2010's result and advanced to the fourth round without losing a set, defeating in order, 10th seed Feliciano López, Juan Mónaco and Lukáš Rosol. In the fourth round, he lost in straight sets to 5th seed Kei Nishikori.^[4]

At the 2015 Citi Open, Gabashvili upset two time Grand Slam champion and world No. 3 Andy Murray in the second round in three tight sets to claim only his fourth ever win against a Top 10 player,^[5] however he lost to Ričardas Berankis in the next round in two sets.

He finished the year 2015 ranked World No. 50 for the first time in his career. On 1 February 2016, he achieved his highest career singles ranking of World No. 43.

2021: 20 months ban from competition

In November 2021, he was banned for 20 months from competing for doping. He was ranked No. 270 on 15 November 2021.^[6]

Doubles: 2 (1 title, 1 runner-up)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Jul 2007	Indianapolis Tennis Championships, US	International	Hard	Ivo Karlović	Juan Martín del Potro Travis Parrott	6–3, 2–6, [6–10]
Win	1–1	Apr 2015	U.S. Men's Clay Court Championships, US	250 Series	Clay	Ričardas Berankis	Treat Huey Scott Lipsky	6–4, 6–4

Singles: 28 (15–13)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Jun 2003	Spain F10, Tenerife	Futures	Hard	Roman Valent	6–2, 6–0
Win	2–0	Jul 2003	Georgia F1, Tbilisi	Futures	Clay	Jan Minář	6–4, 6–1
Win	3–0	Jul 2003	Georgia F2, Tbilisi	Futures	Clay	Martin Slanar	3–6, 6–2, 6–3
Win	4–0	Aug 2003	Russia F3, Zhukovsky	Futures	Clay	Alexander Sikanov	6–2, 2–6, 6–4
Loss	4–1	Aug 2004	Bukhara, Uzbekistan	Challenger	Hard	Michal Mertiňák	6–3, 4–6, 3–6
Loss	4–2	Jun 2005	Barcelona, Spain	Challenger	Clay	Sergio Roitman	2–6, 3–6
Win	5–2	Jul 2005	Poznań, Poland	Challenger	Clay	Adrián García	6–4, 6–2
Loss	5–3	Nov 2005	Reunion Island, Réunion	Challenger	Hard	Philipp Kohlschreiber	2–6, 3–6
Win	6–3	May 2008	Telde, Spain	Challenger	Clay	Pablo Andújar	6–4, 4–6, 6–1
Win	7–3	Jun 2008	Karlsruhe, Germany	Challenger	Clay	Tobias Kamke	6–1, 6–4
Win	8–3	Jun 2008	Milan, Italy	Challenger	Clay	Diego Hartfield	6–4, 4–6, 6–4
Win	9–3	Oct 2008	Mons, Belgium	Challenger	Hard (i)	Édouard Roger-Vasselin	6–4, 6–4
Loss	9–4	Jul 2009	Braunschweig, Germany	Challenger	Clay	Óscar Hernández Pérez	1–6, 6–3, 4–6
Loss	9–5	Aug 2011	Astana, Kazakhstan	Challenger	Hard	Rainer Schüttler	6–7(6–8), 6–4, 4–6
Loss	9–6	May 2012	Bordeaux, France	Challenger	Clay	Martin Kližan	5–7, 3–6
Win	10–6	May 2013	Qarshi, Uzbekistan	Challenger	Hard	Radu Albot	6–4, 6–4
Win	11–6	May 2013	Samarkand, Uzbekistan	Challenger	Clay	Oleksandr Nedovyesov	6–3, 6–4
Loss	11–7	Sep 2013	Kenitra, Morocco	Challenger	Clay	Dominic Thiem	6–7(4–7), 1–5 ret.
Loss	11–8	Oct 2013	Tashkent, Uzbekistan	Challenger	Hard	Dudi Sela	1–6, 2–6
Win	12–8	May 2015	Karshi, Uzbekistan	Challenger	Hard	Evgeny Donskoy	5–2 ret.
Win	13–8	May 2015	Samarkand, Uzbekistan	Challenger	Clay	Yuki Bhambri	6–3, 6–1
Win	14–8	Jun 2015	Fergana, Uzbekistan	Challenger	Hard	Alexander Kudryavtsev	6–2, 1–0 ret.
Loss	14–9	May 2017	Gimcheon, South Korea	Challenger	Hard	Thomas Fabbiano	5–7, 1–6
Loss	14–10	Apr 2018	Egypt F11, Sharm El Sheikh	Futures	Hard	Lucas Miedler	3–6, 5–7
Win	15–10	Apr 2018	Egypt F12, Sharm El Sheikh	Futures	Hard	Lucas Miedler	6–2, 6–3
Loss	15–11	Apr 2018	Kazakhstan F5, Shymkent	Futures	Clay	Denis Yevseyev	2–6, 3–6
Loss	15–12	Jan 2019	M25 Kazan, Russia	World Tennis Tour	Hard (i)	Sanjar Fayziev	3–6, 5–7
Loss	15–13	Jan 2021	Potchefstroom, South Africa	Challenger	Hard	Jenson Brooksby	6–2, 3–6, 0–6

Doubles: 21 (14–7)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Aug 2002	Russia F2, Saransk	Futures	Clay	Alexander Pavlioutchenkov	Sergei Demekhine Ivan Syrov	6–4, 7–6(7–3)
Win	2–0	Jun 2003	Spain F9, La Palma	Futures	Hard	Alexander Pavlioutchenkov	Rafael Moreno-Negrín Ferran Ventura-Martell	6–4, 6–4
Win	3–0	Aug 2004	Togliatti, Russia	Challenger	Hard	Dmitri Vlasov	James Auckland Ladislav Švarc	6–3, 5–7, 6–4
Win	4–0	Nov 2005	Reunion Island, Réunion	Challenger	Hard	Stéphane Robert	Ivan Cerović Petar Popović	6–4, 6–3
Win	5–0	Oct 2006	Grenoble, France	Challenger	Hard (i)	Evgeny Korolev	Thomas Oger Nicolas Tourte	7–5, 6–4
Win	6–0	Sep 2009	Trnava, Slovakia	Challenger	Clay	Grigor Dimitrov	Jan Minář Lukáš Rosol	6–4, 2–6, [10–8]
Loss	6–1	Oct 2009	Mons, Belgium	Challenger	Hard (i)	Alejandro Falla	Denis Istomin Evgeny Korolev	7–6(7–4), 6–7(4–7), [9–11]
Loss	6–2	Jul 2011	Dortmund, Germany	Challenger	Clay	Andrey Kuznetsov	Dominik Meffert Björn Phau	4–6, 3–6
Win	7–2	May 2012	Ostrava, Czech Republic	Challenger	Clay	Radu Albot	Adam Pavlásek Jiří Veselý	7–5, 5–7, [10–8]
Loss	7–3	Jun 2012	Monza, Italy	Challenger	Clay	Stefano Ianni	Andrey Golubev Yuriy Schukin	6–7(4–7), 7–5, [7–10]
Win	8–3	Apr 2013	Savannah, USA	Challenger	Clay	Denys Molchanov	Michael Russell Tim Smyczek	6–2, 7–5
Win	9–3	Oct 2013	Tashkent, Uzbekistan	Challenger	Hard	Mikhail Elgin	Purav Raja Divij Sharan	6–4, 6–4
Win	10–3	May 2017	Gimcheon, South Korea	Challenger	Hard	Marco Chiudinelli	Ruan Roelofse Yi Chu-huan	6–1, 6–3
Loss	10–4	Mar 2018	Russia F3, Kazan	Futures	Hard (i)	Roman Safiullin	Alexander Pavlioutchenkov Evgenii Tiurnev	4–6, 6–3, [6–10]
Win	11–4	Apr 2018	Egypt F12, Sharm El Sheikh	Futures	Hard	Lucas Miedler	Marat Deviatiarov Vladyslav Manafov	6–4, 6–0
Loss	11–5	May 2019	Samarkand, Uzbekistan	Challenger	Clay	Sergey Fomin	Gonçalo Oliveira Andrei Vasilevski	6–3, 3–6, [4–10]
Win	12–5	Aug 2019	Portorož, Slovenia	Challenger	Hard	Carlos Gómez-Herrera	Lucas Miedler Tristan-Samuel Weissborn	6–3, 6–2
Loss	12–6	Sep 2019	Baotou, China	Challenger	Hard	Sasikumar Mukund	Nam Ji-sung Song Min-kyu	6–7(3–7), 2–6
Loss	12–7	Jan 2020	Rennes, France	Challenger	Hard	Lukáš Lacko	Tristan-Samuel Weissborn Antonio Šančić	5–7, 7–6(7–5), [7–10]
Win	13-7	Nov 2020	Cary, United States	Challenger	Hard	Dennis Novikov	Luke Bambridge Nathaniel Lammons	7–5, 4–6, [10–8]
Win	14–7	Oct 2023	Telavi, Georgia	Futures	Clay	Aleksandre Metreveli	Grigoriy Lomakin Zura Tkemaladze	6–4, 6–4

Singles

Doubles

Davis Cup (6–6)

• indicates the outcome of the Davis Cup match followed by the score, date, place of event, the zonal classification and its phase, and the court surface.

Rubber outcome	No.	Rubber	Match type (partner if any)	Opponent nation	Opponent player(s)	Score
4–1; 6–8 March 2009; Sala Transilvania, Sibiu, Romania; World Group; Carpet(i) surface
Victory	1	V	Singles (dead rubber)	Romania	Victor Crivoi	6–4, 6–2
3–2; 5–7 March 2010; Small Sports Arena "Luzhniki", Moscow, Russia; World Group; Hard(i) surface
Defeat	2	III	Doubles (with Igor Kunitsyn)	India	Mahesh Bhupathi / Leander Paes	3–6, 2–6, 2–6
Defeat	3	V	Singles (dead rubber)	Rohan Bopanna	6–7(5–7), 4–6
2–3; 4–6 March 2011; Boråshallen, Borås, Sweden; World Group; Hard(i) surface
Defeat	4	II	Singles	Sweden	Joachim Johansson	3–6, 6–7(4–7), 4–6
0–5; 14–16 September 2012; Harmonia Tenis Clube, São José do Rio Preto, Brazil; World Group play-offs; Clay surface
Defeat	5	II	Singles	Brazil	Thomaz Bellucci	3–6, 6–4, 0–6, 6–7(4–7)
Defeat	6	III	Doubles (with Alex Bogomolov Jr.)	Marcelo Melo / Bruno Soares	5–7, 2–6, 6–7(7–9)
2–3; 31 January – 2 February 2014; Olympic Stadium, Moscow, Russia; Europe/Africa First round play-off; Hard(i) surface
Victory	7	V	Singles (dead rubber)	Poland	Michał Przysiężny	7–5, 7–5
1–4; 18–20 September 2015; Baikal-Arena, Irkutsk, Russia; World Group play-offs; Hard(i) surface
Victory	8	I	Singles	Italy	Simone Bolelli	7–6(7–2), 6–1, 6–3
Defeat	9	IV	Singles	Fabio Fognini	6–7(4–7), 3–6, 6–7(5–7)
5–0; 4–6 March 2016; Kazan Tennis Academy, Kazan, Russia; Europe/Africa First round play-off; Hard(i) surface
Victory	10	II	Singles	Sweden	Daniel Windahl	6–3, 6–1, 6–1
Victory	11	IV	Singles (dead rubber)	Isak Arvidsson	6–4, 6–0
4–1; 15–17 July 2016; National Tennis Centre, Moscow, Russia; World Group Second round; Hard surface
Victory	12	II	Singles	Netherlands	Thiemo de Bakker	6–7(3–7), 7–6(7–4), 6–4, 6–4

ATP Cup (2–1)

Rubber outcome	No.	Rubber	Match type (partner if any)	Opponent nation	Opponent player(s)	Score
8–1; 3–7 January 2020; Perth Arena, Perth, Australia; Group stage; Hard surface
Victory	1	III	Doubles (with Konstantin Kravchuk)	Norway	Viktor Durasovic / Casper Ruud	7–6(7–4), 6–4
3–3; 10–11 January 2020; Ken Rosewall Arena, Sydney, Australia; Knockout stage; Hard surface
Victory	2	III	Doubles (with Konstantin Kravchuk)	Argentina	Máximo González / Andrés Molteni	7–6(7–5), 6–4
Defeat	3	III	Doubles (with Konstantin Kravchuk)	Serbia	Nikola Ćaćić / Viktor Troicki	4–6, 6–7(7–9)