Bolt spent the rest of 2012 competing on the Futures Circuit and reached his first final and winning the Australian F7 in Happy Valley, South Australia; this was his first career title.

Between February and May, Bolt competed in a number of Future tournaments, making the semi-finals in Australia F1, F2 and China F1.

Bolt's won his first ATP Challenger Tour on 3 May at the China International against Nikola Mektić in straight sets, increasing his ranking to a career high of #240.

At Wimbledon, Bolt fell just short of making his grand slam debut, losing in the final round of qualifying to Russian Konstantin Kravchuk in four sets.

Bolt missed the 2015 Australian Open singles, but played in the doubles as a wildcard pair with A. Whittington, reaching the third round.

In March, Bolt made his first ATP Masters 1000 main draw in Indian Wells, after two wins in qualification.

Bolt played the North America from July to August with limited success, before returning to Australia's futures circuit where he made the final of the Cairns F7, but lost in three sets to Finn Tearney.

Bolt then qualified for the 2017 Australian Open, defeating Marius Copil, Matthias Bachinger and Julien Benneteau.

In February, Bolt travelled to Asia but failed to qualify for any Challenger events in singles, before returning to the futures tour in Australia.

In May, Bolt travelled to Europe, where he qualified for and made the final of the Ilkley Trophy, losing to Marton Fucsovics in straight sets.

In October, Bolt made his second Challenger tour final of the season at Traralgon where he lost to fellow Aussie Jason Kubler in three tight sets.

Despite losing to Alex De Minaur in the final, Bolt's performance throughout the tournament and strong 2017 earned him a discretionary wildcard into the Australian Open.

Bolt also had a handy year on the doubles circuit, making five Challenger finals with three victories to finish the season ranked No.

Bolt started the season in his home state of South Australia at the inaugural Playford Challenger event, where he lost to Jason Kubler.

Bolt received a wildcard into the 2018 Sydney International in both singles and doubles, partnering compatriot Jordan Thompson.

[13] In June, Bolt won his first ATP World Tour match at the Rosmalen Grass Court Championships, defeating Vasek Pospisil in round 1.

Bolt also partnered 2002 Men's singles Wimbledon champion Lleyton Hewitt in doubles after the pair received a wildcard.

In July, Bolt qualified for Hall of Fame Tennis Championships, Atlanta and Washington but lost in first round of all three.

Bolt received a wildcard in the Australian Open where he defeated Jack Sock in four sets for his first Grand Slam win.

He was awarded a fourth wildcard in a row for the Australian Open main draw where he lost to Grigor Dimitrov in the second round.

Bolt participated in the doubles event at the 2023 Australian Open partnering Luke Saville where they reached the third round.

At the 2024 Wimbledon Championships where he entered as an alternate in the qualifying competition, Bolt reached the main draw with a five-set win over Leandro Riedi, coming from a two sets to love down deficit, saving a match point in the process.