Groves generally fought in the 75 kilograms (165 lb) division as an amateur and won the Senior ABA championship for his weight in 2006 and 2007.
[4] In 2006, he defeated future Olympic and world champion James DeGale and compiled a total amateur record of 66 wins out of 76 fights with 40 stoppage victories.
He followed the victory up in March defeating Paul Samuels at the Echo Arena in Liverpool, and in April travelled to Belfast to dispose of Sandor Polgar.
[8] On 7 November 2009, following two more professional outings, Groves travelled to Germany and fought on the undercard of stablemate David Haye's WBA title win against Nikolai Valuev, defeating the experienced Konstantin Makhankov in his first fight over eight rounds.
[9] Groves followed up the win by travelling to Las Vegas in order to gain some higher-profile experience and to fight on the undercard of Marquez-Diaz II on 31 July 2010.
[10] On 13 November 2010, Groves made the first defence of his title beating former Commonwealth Games gold medalist Kenny Anderson in the sixth round.
[11] On 5 March 2011, Groves defeated Daniel Adotey Allotey at the Huddersfield Leisure Centre, winning by stoppage in the fourth round of what was an eight-round non-title fight.
On 21 May 2011 at the O2 Arena in London, Groves and DeGale met in a highly anticipated grudge match for the Commonwealth and British super-middleweight titles.
In May, Groves defeated 34 year old Noe Gonzalez Alcoba (30-2, 22 KOs) at the O2 Arena on the undercard of the Carl Froch vs. Mikkel Kessler rematch.
Groves landed a right hand in the opening minute of the fifth round which caught Noe Gonzalez coming forward and sent him down for a count of five.
Many observers at ringside, including fellow boxers David Haye and Amir Khan, remarked that referee Howard Foster had stepped in too quickly during an exchange in which both fighters landed heavy punches.
[22] On 13 February 2014, it was announced by Eddie Hearn and Matchroom Boxing that Froch v Groves II would take place on 31 May 2014 at Wembley Stadium in London, England.
Froch was quoted that the fight was what the 'British public want to see' and that was his reason for taking the option to give George Groves a rematch while defending his IBF and WBA super-middleweight titles.
On 20 September 2014, he won the European and vacant WBC silver super middleweight title after defeating French boxer Christopher Rebrassé via unanimous decision after 12 rounds.
[30][31] Two months later, Groves was back in the ring at the Echo Arena in Liverpool on the Tony Bellew vs. Nathan Cleverly PPV undercard.
Groves knocked down American boxer Denis Douglin in round 7, winning the fight via TKO and also retaining the WBC Silver super middleweight title.
[32] On 17 June 2015 it was announced that Badou Jack would make his first defence against mandatory challenger Groves on 22 August in Las Vegas.
[34] On 21 July, the fight was pushed back to instead take place on the undercard of Floyd Mayweather Jr. vs. Andre Berto on 12 September at the MGM Grand Garden Arena.
Going into the fight, old foe James DeGale had voiced his support for Groves, as he himself had become IBF champion four months prior, and was looking forward to a potential rematch with world titles at stake.
On 30 January 2016 Groves fought at the Copper Box in London against fringe Italian contender Andrea Di Luisa (18-3, 14 KOs).
[47] On 7 December 2016, Groves confirmed via his Twitter account that he would challenge Fedor Chudinov for the vacant WBA super middleweight title.
[50] On 20 April, it was announced that the fight would take place at Bramall Lane in Sheffield on 27 May as part of the undercard of Brook-Spence PPV.
The winner of both fights would then need to meet in order to decide one titleholder, as part of WBA's plans to reduce the number of world titles per division.
A barrage of punches gave referee Steve Gray no choice but to halt the fight giving Groves the win.
Groves spoke to Sky Sports after the fight and credited his trainer Shane McGuigan, "This is the end of a lifetime's work.
[59] At the Draft Gala on 8 July, Groves, who was first-seeded, meaning he had the option to select his opponent, choose to fight undefeated British boxer Jamie Cox (23-0, 13 KOs).
The winner of the fight would earn his place in the final of the tournament as well as walk out with the WBA (Super) and IBO super-middleweight titles.
Groves, the bigger man in the ring, used his jab to control the fight after a cagey round and mostly fought on the back foot, occasionally landing the big shot.
[90] By 6 July, there was still no date set, however according to Kalle Sauerland, the bout was expected to take place in September and likely not in the UK, with some rumours hinting there was a strong interest from Las Vegas and Middle East.
[91][92] On 27 July, Sauerland announced the fight would take place at a 10,000 capacity arena at the King Abdullah Sports City Complex in Jeddah, Saudi Arabia on 28 September 2018.