2008–2011 Saville entered his first professional event in October 2008 as a 14-year-old. The event was held in his home state of South Australia. Saville was awarded a bye in the first round of qualifying but lost in the second round to
Ben Mitchell 5–7, 0–6. Saville competed in his first main draw of a futures tournament in February 2009 when he was awarded a wildcard into a futures tournament in
Mildura, he fell in the first round to Miles Armstrong 5–7, 0–6. The following week he was awarded a second wildcard into the main draw of a futures tournament held in
Berri, South Australia, the birthplace of Saville. He would lose in the first round to Matt Reid 4–6, 4–6. In preparation for the junior Davis Cup finals Saville was awarded his third wildcard into a futures event held in
Darwin. As a fifteen-year-old he won his first round against Steven Goh 7–6(3), 6–3 and in doing so earned his first ever ATP ranking points as well as becoming the youngest player on the ATP rankings. Saville would go on to lose to
John Millman in the second round 2–6, 0–6. Saville was awarded a wildcard into the
2010 Australian Open qualifying draw where he fell in the first round to Frenchman
Alexandre Sidorenko 1–6, 1–6. Following the Australian Open Saville was awarded a wildcard into his first ever challenger event in Burnie, he went down gallantly in three sets to Dayne Kelly 6–4, 3–6, 4–6. In March Saville traveled to Spain to train at the AIS headquarters and in doing so entered a Spanish futures tournament, he would lose in the first round of qualifying. On return to Australia Saville continued to play clay court tournaments leading up to the Roland Garros juniors by receiving wildcards into future tournaments in Ipswich and Bundaberg respectively. He would reach the second round of both tournaments. Saville entered three more Australian future tournaments later that year but failed to make it past the first round. Saville once again began his year with a wildcard into the Australian Open qualifying but failed to make it past the first round after losing to
Nicolas Mahut in the first round. Following his runner up appearance at the Australian Open juniors he was once again granted a wildcard into the challenger held in Burnie but fell in the first round to
Paolo Lorenzi. Throughout the rest of the year Saville competed in futures tournaments across Australia, Thailand, Italy, Netherlands, Great Britain and USA but failed to make it past the first round of the main draw in all tournaments. He would hit some form at the end of 2011 where he made his first ever professional quarterfinal in the last future tournament of the year held in Australia. Saville would finish the year ranked 1,176 in the world.
2012: Turned Pro Saville was awarded qualifying wildcards into the events held in Brisbane, Sydney, and the Australian Open. In Brisbane, Saville reached the second round of qualifying, after defeating Alex Bolt, 6–4, 1–6, 6–3, but later fell to
Tatsuma Ito in the second round, 2–6, 2–6. In Sydney qualifying, Saville was knocked out in the first round by
Andre Begemann, 4–6, 4–6. Saville lost in the first round of Australian Open qualifying, going down to
Ivo Minář, 6–7(3), 1–6.
2013: Grand Slam debut Saville began his year by losing in the opening rounds of qualifying at both the
2013 Brisbane International and
Sydney International to
John Millman and
Tatsuma Ito, his first top 100 opponent. Saville was awarded a wildcard into the
2013 Australian Open for his Grand Slam debut. In his first ATP main draw, he lost in round one to Japanese
Go Soeda in four sets. After a number of early round losses in futures and challenger tournaments in Australia, Japan and the United States. After a number of early losses, Saville made the final of the USA futures F10 event in
Little Rock. He lost in straight sets to
Austin Krajicek. From May to August, Saville competed in tournaments throughout Asia and North America, with a record of five wins to seven losses. His top result being in the Korea futures F5 event where he reached the quarterfinals. In September, Saville returned to form competing in Australian Futures tournaments. He reached the semifinal at the F6 event in
Toowoomba, going down to
Andrew Whittington in three sets. After losing in the second round of the Australia F7 in
Cairns, he again won through to a semifinal at the Australia F8 tournament in
Alice Springs. He lost to
Jordan Thompson in a third set tiebreak. After a first round loss in the Australia F9 tournament in
Sydney to Blake Mott, Saville won his first title of the year at the Australia F10 event in Sydney. He defeated Yasutaka Uchiyama in a three set final. He was forced to withdraw from his match with
Jordan Thompson with a hamstring injury. Saville then returned to the challenger circuit with first round and second round losses in the
2013 Melbourne Challenger and the
Traralgon ATP Challenger. In November, Saville made the final of the Thailand F4, but lost to Yasutaka Uchiyama in three sets. He lost to Uchiyama again in round 2 the following week in the Thailand F5. Saville finished his year with a semifinal loss at the
Australian Open Wildcard Playoff to
Ben Mitchell in straight sets. Saville finished 2013 ranked World No. 398.
2014: Top 200 debut Saville was given a wildcard into
qualifying at the
2014 Australian Open where he lost in the first round to
Paul Capdeville in three sets. Saville then lost in the first round of the
2014 Burnie International and the second round of the
2014 Charles Sturt Adelaide International. Saville next competed in the Australia 2014
Futures F1 event in
Happy Valley where he reached the final, and went down in straights sets to
Jarmere Jenkins. The next week in the Australia F2 in
Port Pirie, Saville went on to win the title against
Jordan Thompson after he was forced to withdraw while Saville led by a set and a break. Saville then claimed another title in the Australia F3 event in
Mildura with a three set win over
Dane Propoggia. After losing in the second round of the Australia F4 event, Saville went on to win his third Futures title of the year in
Glen Iris. Saville defeated
Alex Bolt in the final in a match where he was forced to save multiple match points. Saville's run of form in the futures tournaments lifted his ranking from World No. 397 to No. 250. In May, Saville, made the quarterfinals of the
Gimcheon Challenger, but lost to eventual finalist
Tatsuma Ito. This was his best result at a Challenger tour event. Saville scored his first top 100 win against top seed
Thomaz Bellucci in the first round of
qualifying at the
2014 Wimbledon Championships. After defeating
Rhyne Williams in three sets, Saville won a long five set final round against
Yann Marti which meant he had qualified for the main draw. This would be just his second main draw ATP match of his career. In the first round, he prevailed against
Dominic Thiem in four sets. This was his first win in a major championship and as a result, he broke into the top 200 for the first time. He lost to
Grigor Dimitrov in the second round. Saville played his final grass court tournament for the year at the
2014 Hall of Fame Tennis Championships in
Newport. He defeated
Sarvar Ikramov and
Hiroki Moriya to qualify for his third ATP main draw. He defeated
Peter Polansky in straight sets before losing to
Nicolas Mahut in the second round. In July, Saville sustained a lower back issue in the quarterfinals of the
Granby Challenger. This injury sidelined him from the
US Open and competition for almost three months. Saville returned from injury in October and made the final of the Australia futures F8 event, but lost to
Jarmere Jenkins in straight sets. Saville reached the quarterfinals of the
2014 Traralgon ATP Challenger 1, going down to
John-Patrick Smith, after taking the first set. He then reached the semifinals of the
2014 Traralgon ATP Challenger 2, before losing to eventual champion
John Millman. This result gave him a career high ranking of World No. 158. He lost in the first round of the
Toyota Challenger in a third set tiebreak to Mao-Xin Gong. Saville finished the year at the
Australian Open Wildcard Playoff where he reached the semifinal. He was forced to withdraw from his match with
Jordan Thompson with a hamstring injury. Saville finished the year with a ranking of World No. 164.
2015: Career-high in singles, Maiden Challenger final Saville was given a wild card into the
2015 Australian Open, where he lost in round 1 to
Tim Smyczek in straight sets. In February, Saville reached the quarter final of the
2015 Delhi Open. As a result, he reached a career-high in singles of World No. 152 on 23 February 2015. In May, Saville made the second round of
French Open qualifying. In June, Saville made his first final on the
ATP Challenger Tour, losing to compatriot
Sam Groth in the
Manchester Challenger. Following that, Saville qualified for
Wimbledon for the second year in a row, saving a match point and fighting back from two sets down to defeat higher-ranked Italian
Luca Vanni in the final round of qualifying. Saville lost in the first round to 21st seed
Richard Gasquet in straight sets. In August, Saville won the USA F24 title against Kevin King, but lost in round 1 of qualifying for the
US Open to
Karen Khachanov. In October, Saville returned to Australia where he made the final of the Brisbane F9, losing to Gavin van Peperzeel in three sets 6–7, 6–2, 6–7. He made the final of the
Canberra International but lost to
Benjamin Mitchell 7–5, 0–6, 1–6. Saville finished the year with a ranking of world number 174.
2016: Loss of form in singles Saville lost in round one of qualifying for the
2016 Apia International Sydney and
2016 Australian Open. In February, Saville made the semi-final of the
2016 Launceston Tennis International before heading to Asia where he played in a number of Challenger tournaments, with limited success. In May, Saville lost in round 1 of qualifying for the
2016 French Open. In June, Saville made the quarter final of the
Surbiton Challenger before qualifying for the
2016 Wimbledon Championships for the third year in a row Saville finished the year with a ranking of world number 266.
2017: Resurgence in doubles and top 150 debut After a disappointing 2016 campaign, Saville admitted that the pressure of expectations had gotten to him in the past, but was "finding his mojo" again after reuniting with former coach Des Tyson. Despite his hopes, 2017 was a disaster year for Saville, who posted just nine main draw singles wins on the Challenger and Futures circuit and failed to make it past the second round at any tournament. Saville also failed to feature in a grand slam main draw since 2012. As a result, Saville's ranking plummeted to World No. 521 in singles to close out the year, his worst year-end ranking since 2011. Despite having an unsuccessful year in singles, Saville managed to make seven Challenger doubles finals in 2017, winning once. He finished the season ranked World No. 130 in doubles.
2018: Three doubles Challengers titles, New partnership with Max Purcell Saville commenced the 2018 year on the Australian Challenger circuit, with limited success. In March, Saville reached the final of the Australia F1, losing to
Marc Polmans. It was Saville's first singles final in over 2 years. Saville travelled to Asia and qualified for 2 Challenger main draws from 5 attempts. Saville experiences similar limited success across Europe and North American challenger circuit, his best result being a quarterfinal appearance at the
Columbus Challenger in September. In October, he reached the first Challenger final with new partner fellow Australian
Max Purcell in Traralgon, Australia. In November, the duo went on to win their first Challenger in Bangalore, India.
2020: First Grand Slam doubles final and second ATP final At the
2020 Australian Open, he paired with
Max Purcell as a wildcard in
doubles, where they reached the final losing to 11th seeded pair American
Rajeev Ram and Brit
Joe Salisbury. The pair also reached their second final of the season of the
2020 Astana Open where they lost to Belgians
Sander Gillé/
Joran Vliegen.
2021: Two Major doubles third rounds, Olympics in singles & doubles, top 25 At the
Olympics, Saville was entered as a last-minute
alternate for Hungarian
Márton Fucsovics who had withdrawn due to right shoulder injury. He also participated in the doubles competition with
John Millman. After reaching the third rounds at the
2021 French Open,
2021 Wimbledon Championships, and the quarterfinals of the Canada Masters 1000 in the
2021 National Bank Open edition, he reached the top 30 in doubles at World No. 28 on 16 August 2021.
2025: Retirement Saville announced his retirement from professional tennis in January 2025, with a final appearance at the
2025 Australian Open where he partnered
Li Tu as a wildcard pair. He played his last match after reaching the third round, losing to
Sem Verbeek and
André Göransson. ==Significant finals==