[10][9] Booth made his professional debut on 29 October 2005 at the Beach Ballroom in Aberdeen, Scotland, with him going the full six-rounds, defeating Donvill Hendricks via a points decision.
"[12] Following his destruction of Welborn, Booth won a unanimous decision against Slovakian Richard Turba at Norbreck Castle Hotel in Blackpool.
[13] For his fifth-fight, Booth travelled to Lanzarote, Spain, where he lost a close points decision to future Spanish super-middleweight champion, Alexis Callero.
[14] On 22 September 2006, after his loss against Callero, Booth returned with a points victory against highly touted George Hillyard at York Hall.
[16] He then had three more fights in the space of three months, defeating Chris Black (4-1-1), Peter Dunn (11-61-3), and Nathan Graham (6-0) all via unanimous points decisions.
[17][18][19] On his fight with Dunn, Booth admitted that he was unhappy with his performance, to which he stated "I didn’t get a good reaction from the crowd that night because I dropped down to the level of my opponent, but there will be no holding me back this time.
[20][21] On 23 March 2007, at Nottingham Arena, Graham defeated Booth via knockout in the tenth-round to secure the Midlands Area welterweight title.
[22] As the rounds wore on, Gethin began to make his pressure pay a little more, particularly with his overhand right, which kept catching Booth due to his low left hand.
[22] On 14 November, Booth was scheduled to face Kreshnik Qato on the undercard of Darren Barker and Ben Crampton for the vacant Commonwealth middleweight title at York Hall, however, the fight was cancelled.
[41] In what looked like a lively move in round six, Portman was cut - suspected to be from a clash of heads; the bout was full of wild uncultured punches.
[42][43] On 10 January 2010, BBC reported that Booth was one of the rumoured candidates to be competing alongside Bradley Pryce for the first light-middleweight Prizefighter tournament, at the York Hall on 26 February.
[51] He was rocked by a right hand over the top which caught him on the temple in the second round, though he showed great resolve and soon enough his superior work rate and movement started to pay dividends.
"[52] Following his loss to Proksa, Booth was announced to be returning on the undercard of Carl Froch's defence of his IBF super-middleweight title against American Yusaf Mack at the Nottingham Arena on 17 November, to face Ryan Aston (7-1-0).
"[60] After the disqualification to Renda, on 8 March, Booth's return came in a narrow points-loss to former British super welterweight champion Prince Arron, to which referee Phil Edwards scored 57–58 at the Bowlers Exhibition Centre in Manchester.
[61][62][63] After his narrow points loss to Arron, Booth secured himself a 17 May shot for the vacant English light-middleweight title against Navid Mansouri (11-1-1) at Ponds Forge Arena in Sheffield.
[68] Just before the end of the first, Booth had success with a right hand which made Mansouri wince, with him returning to his corner in discomfort and concerned about his left eye.
[68] In the fourth, Booth offered some crisp work but spent time admiring his successes whilst the less-refined Mansouri chugged along.
[68] Mansouri was still scoring sporadically to the body, though Booth was hunting him down but not taking full advantage of the positions he was getting himself into, throwing ones and twos rather than sustained combinations.
[68] After ten entertaining rounds of boxing, judges Steve Gray, Mark Lyson, and Dave Parris scored the bout 94–98, 94–98, and 94–96 all in favour for Mansouri, who improved his spotless record to 12-1-1.
[73][74] However, on 8 June, Booth took a late-notice eight-rounder with unbeaten Chris Eubank Jr. (9-0-0) at Bluewater in Kent,[75][76] on the undercard of James DeGale's defence of his WBC Silver super-middleweight title against Stjepan Božić.
[77][78][79] On 5 June 2013, Booth spoke to First Class Boxing, wherein he revealed that he was first aware of the fight on 29 May, and regarding his proclivity in taking high-level opponents at very short notice, Booth went on to stated that "[...] I've never had a promoter, giving me two months notice for fights, the most I've had is two weeks the least is two days [...] I've got to do it the Johnny Nelson way: taking last minute jobs in fighters' back gardens, and learning the hard way.
[81][82] In the opening exchanges it was Booth that started the brighter - utilising his height and reach advantage to frustrate Eubank Jr and keep him at range.
[83] As the fight entered the third, Eubank Jr upped his work rate and began to breakdown the tricky Booth, finding windows inside to land solid right hands to the body.
[83] As the contest continued, Eubank Jr came on stronger, again finding space on the inside to deliver powerful body shots, catching Booth with the overhand right that he had been throwing in the earlier rounds.
[83] Booth continued to box smart and use his range but Eubank Jr was growing in confidence, throwing the right hand over before moving inside to the body.
[83] In the eighth and final round, Eubank Jr was on top and another combination of body and head shots opened a cut above Booth's eye.
If I give him room to do his thing, I could make it hard work for myself [...] He gave [Eubank Jnr] a good fight and he's got two draws with Ryan Aston.
[100] In the third round, Booth was cut from another head clash,[101] it was inspected by the doctor who advised the bout to be stopped and the referee, John Latham, obliged.
[104] After the draw with Williams, On 28 February 2014, it was reported that Booth would face Jonson McClumpha (7-0-0) on the undercard of Kirk Goodings' English lightweight title defence against Gary Fox.
[116][117] On 27 February 2018, BBC reported that Booth had his boxing licence suspended following his comments on social media after the death of Scott Westgarth.