19 May 1993 |
|Height||1.79 m (5 ft 10 1⁄2 in)|
|Plays||Right-handed (two-handed backhand)|
|Career record||1–2 (33.33% in Grand Slam and ATP World Tour main draw matches, and in Davis Cup)|
1 Challengers, 10 Futures
|Highest ranking||No. 136 (24 November 2014)|
|Current ranking||No. 189 (24 August 2015)|
|Grand Slam Singles results|
|Australian Open||1R (2010)|
|French Open||Q1 (2015)|
|US Open||Q1 (2015)|
|Career record||0–1 (Grand Slam, ATP Tour level, and Davis Cup)|
|Highest ranking||No. 446 (29 September 2014)|
|Current ranking||No. 446 (29 September 2014)|
|Last updated on: 21 February 2015.|
In 2009 Kubler was a part of the winning Australian junior Davis Cup team with Luke Saville and Joey Swaysland. Following his success at the junior Davis Cup, Kubler won 5 junior titles in a row which saw his junior ranking rise to No. 3 in the world.
Coming into the 2010 Australian Open junior championships Kubler was named by many as a favourite to win his home Grand Slam and make it three from the last four years to be home grown champions.[by whom?] Although Kubler started the tournament well he fell in the third round to fellow Aussie and eventual runner up Sean Berman. Despite being seeded second and first in Roland Garros and Wimbledon junior tournaments respectively, Kubler did not live up to his seeding, crashing in the second and third round of either tournament.
Kubler received a wildcard entry into his first and only junior tournament of 2011 in the 2011 Wimbledon Championships. Kubler reached the semifinals before falling to local Liam Broady and in doing so recorded his best ever junior result.
As a junior Kubler reached the No. 1 combined world ranking, posting a singles win/loss record of 67-17 (and 42-19 in doubles) in May 2010.
Junior Slam results:
Junior singles titles (6)
|Grand Slam (0)|
|Grade A (1)|
|Grade B (2)|
|Grade 1-5 (3)|
|No.||Date||Tournament||Surface||Opponent in the final||Score|
|1.||14 July 2009||Darwin||Hard||Jordan Kelly-Houston||6–3, 6–4|
|2.||23 August 2009||Lautoka||Hard||William Kwok||6–4, 6–1|
|3.||19 October 2009||Osaka||Hard||Hiroyasu Ehara||6–0, 4–6, 6–2|
|4.||26 October 2009||Nanthaburi||Hard||Yasutaka Uchiyama||7–6(7–3), 6–2|
|5.||3 November 2009||Jeju-Do||Hard||Yasutaka Uchiyama||6–2, 6–4|
|6.||24 May 2010||Charleroi||Clay||James Duckworth||6–7(3–7), 7–6(7–1), 6–4|
Kubler played his first senior tournament in September 2008, of the five Australian future tournaments he entered he was able to qualify for one which resulted in a straight sets first round loss to Marinko Matosevic.
2009 saw Kubler again enter Australian future events in which some he qualified for and some he was given a wildcard entry to. After much success on the ITF junior circuit Kubler disappointed with a first round loss in all the Australian future main draws he played.
Kubler began 2010 by entering all the Australian ATP tournaments with the help of wildcards, the events were held in Brisbane, Sydney and the Australian Open in Melbourne. Kubler lost first round in both Brisbane and Sydney qualifying and was defeated in the first round of the Australian Open by Ivan Ljubičić 6-2 6-1 6-1. After disappointment in his debut on the Grand Slam stage, Kubler entered qualifying for the Burnie Challenger where he was defeated in the final round of qualifying by the eventual champion Bernard Tomic.
Kubler then headed to Europe to play a few Spanish clay court futures event, all resulted in non-qualification. Towards the end of April Kubler successfully gained his first ever ATP points in an Australian futures event held in Ipswich and went on to reach the final of the event, losing to Brydan Klein in straight sets. Following a ranking rise due to his finals performance in an Australian future tournament Kubler received direct entry into a clay Dutch futures tournament in June where he was a surprise semifinalist, beating former top 200 player and number 1 seed Matwe Middelkoop in the quarterfinals 6-2 6-4.
In the lead up to the US open juniors tournament Kubler entered an Italian hard court futures tournament where he was seeded eighth. Kubler reached the semifinals of the tournament falling to the top seed from Italy in straight sets. Following his US Open junior efforts Kubler returned to Europe for a month and a half with the highlight being a semifinal in a Portuguese future tournament before returning to Australia to compete in more futures events.
After an injury plagued start to the year Kubler won his first futures tournament in Birmingham, Alambama defeating Yoshihito Nishioka 6-3 6-2 in the final in October. Kubler continued his good form into the following week where he recorded back-to-back titles in Niceville, Florida with a 6-2 6-4 victory over Roman Vogeli in the final.
At the beginning of the year Kubler opted not to enter Australian tournaments being held during January/February and instead chose to enter four consecutive American futures tournaments in Florida. The decision would prove successful for Kubler as he made the final of three out of four tournaments and came out victorious in the last tournament to win his third futures title of his career. Kubler played in Australian futures in March, winning one against John Millman before heading to Europe, where he played three challenger events. His best result being a quarter final loss to Dominik Meffert in the Todi Challenger in September. Following more success on the Futures tour, he reached his career high of #268 on 29 October 2012.
In 2013, Kubler played only Future tournaments and only on clay, throughout USA, Spain, Great Britain, Australia, Italy and Egypt. He made 4 finals and won 3. He finished 2013 with a ranking of #397.
2014: Top 200
Kubler again didn't enter the Australian tournaments in January/February, opting to play Egypt and Spain Futures instead. This would prove successful as he entered 6 tournaments, making the final of 3 and winning 1. He then qualified for the main draw of the challenger events in Panama & Colombia and then competed in Savannah & Tallahassee, making the second round in both. In May, he qualified for the ATP World Tour event in Düsseldorf and lost in the second round to Denis Istomin in three sets, however, this was his first career main draw match win on the ATP World Tour level  and increased his ranking back into the top 300. in June, Kubler returned to the Futures circuit and defeated the #1 seed Kimmer Coppejans in the final of The Netherlands F3 in Breda. This was his 9th futures title. He broke into the top 200 for the first time on 25 August at #197. In September, Kubler made the quarter final of the Biella Challenger and the following week, he won the Sibiu Challenger.  This was his first Challenger title.  Kubler finished 2014 with an ATP ranking of #140.
Kubler skipped the Australian leg again, instead playing in the Colombia and Santo Domingo challengers and qualifying rounds of Quito Open before playing in the United States Challengers throughout April; his best result being a quarter-final in Sarasota. In May, Kubler made the second round of Heilbronner Challenger before the French Open, where he lost in round 1 of qualifying to Tim Pütz. In June, Kubler entered the qualifying rounds of Wimbledon, thus his first first competitive appearance on grass in three years.  He defeated Rui Machado in straight sets in round 1 but lost in round 2 to Aleksandr Nedovyesov who went on to qualify for the main draw.
Professional Career Finals
Singles: 21 (11–10)
Challenger and Futures Finals: 11 Titles, 9 Runner-ups
|Outcome||No.||Date||Tournament||Surface||Opponent in the final||Score in the final|
|Runner-up||1.||2 May 2010||Ipswich, Australia||Clay||Brydan Klein||3–6, 4–6|
|Winner||2.||30 October 2011||Birmingham]], USA||Clay||Yoshihito Nishioka||6–3, 6–2|
|Winner||3.||6 November 2011||Niceville, USA||Clay||Roman Vogeli||6–2, 6–4|
|Runner-up||4.||15 January 2012||Plantation, USA||Clay||Jack Sock||1–6, 6–7(5–7)|
|Runner-up||5.||29 January 2012||Weston, USA||Clay||Brian Baker||5–7, 3–6|
|Winner||6.||5 February 2012||Palm Coast, USA||Clay||Rhyne Williams||6–2, 6–3|
|Runner-up||7.||25 March 2012||Ipswich, Australia||Clay||Samuel Groth||7–5, 3–6, 2–6|
|Winner||8.||1 April 2012||Bundaberg, Australia||Clay||John Millman||6–4, 1–6, 6–1|
|Runner-up||9.||1 July 2012||Izmir, Turkey||Clay||Lorenzo Giustino||4–6, 6–3, 5–7|
|Runner-up||10.||30 September 2012||Sevilla, Spain||Clay||Gerard Granollers-Pujol||0–6, 6–4, 1–6|
|Runner-up||11.||31 March 2013||Bundaberg, Australia||Clay||James Duckworth||6–7(9–11), 2–6|
|Winner||12.||20 April 2013||Padova, Italy||Clay||Jordi Samper-Montaña||6–1, 6–4|
|Winner||13.||2 November 2013||Madrid, Spain||Clay||Jean-Marc Werner||7–6(7–5), 6–0|
|Winner||14.||15 December 2013||Sharm El Sheikh, Egypt||Clay||Sherif Sabri||7–5, 6–3|
|Runner-up||15.||2 February 2014||Sharm El Sheikh, Egypt||Clay||Stefano Travaglia||0–6, 0–6|
|Winner||16.||9 February 2014||Paguera, Spain||Clay||Peter Heller||6–4, 6–4|
|Runner-up||17.||16 February 2014||Paguera, Spain||Clay||Oriol Roca Batalla||6–2, 3–6, 3–6|
|Winner||18.||29 June 2014||Breda, The Netherlands||Clay||Kimmer Coppejans||6–3, 6–7(8–6), 6–3|
|Winner||19.||27 July 2014||Fano, Italy||Clay||Daniele Giorgini||6–1, 5–7, 6–3|
|Winner||20.||28 September 2014||Sibiu, Romania||Clay||Radu Albot||6–4, 6–1|
|Runner-up||21.||23 November 2014||Lima, Peru||Clay||Guido Pella||2–6, 4–6|
- Marc McGowan=publisher=Aceland Tennis (27 September 2014). "Bolt, Kubler reach semi-finals in Napa Valley and Sibiu". Retrieved 29 September 2014.
- Marc McGowan (29 September 2014). "Never-say-die Kubler wins first Challenger title in Sibiu". Aceland Tennis. Retrieved 29 September 2014.
- Shane Jones (23 June 2015). "Wimbledon qualifying: Australian perspective". www.theroar.com.au. Retrieved 23 June 2015.
- Jason Kubler at the Association of Tennis Professionals
- Jason Kubler at the International Tennis Federation
- Jason Kubler at the International Tennis Federation Junior Profile
- The Age Feature on Jason Kubler