Question: John "Darkie" Smith trained a boxer who scored victories over six what?

full_context: Document 1: Darkie Smith: John "Darkie" Smith (born 1942) is a British former boxer, now employed in boxing training and boxing matchmaking. By birth a Romany Gypsy, Darkie fought in the UK until the age of 30. He served an apprenticeship under the pro trainer George Francis before setting out on his own. Smith has worked as a trainer in the UK, France, Spain, Majorca, the USA and Germany. Fighters trained to world titles include heavyweight Herbie Hide, light heavyweight and cruiserweight Fabrice Tiozzo, super middleweight Christophe Tiozzo and light welterweight Stephen Smith. He has also trained European, Commonwealth and British champions, and worked with other future champions during the early stages of their careers. These fighters include European Heavyweight Champion Zeljko Mavrovic and future world champion Chris Eubank. Darkie's work with Mavrovic drew much attention. Mavrovic was trained exclusively by Smith for five years, winning and defending his European title and finishing with a record of one defeat in thirty bouts. The one defeat amounted to a points decision against world champion Lennox Lewis, in a bout that saw Mavrovic concede a significant weight advantage.
Document 2: Frank Bruno: Franklin Roy "Frank" Bruno, {'1': ", '2': ", '3': ", '4': "} (born 16 November 1961) is a British former professional boxer who competed from 1982 to 1996. Bruno had a highly publicised and extremely eventful career. The pinnacle of his boxing career was winning the WBC heavyweight title, in what was his fourth world championship challenge. He also held the European heavyweight title earlier in his career. Bruno was one of the most well-loved and recognisable boxers in British history, and faced multiple top-rated heavyweights during his career including two bouts with Mike Tyson and a domestic clash against Lennox Lewis. He won the WBC title in 1995 after defeating Oliver McCall at a packed Wembley Stadium. Bruno was known for his excellent punching power: he won 40 of his 45 bouts and 38 by knockout, giving him a 95% knockout rate from the fights he won; his overall knockout percentage is 84.44%. Like Henry Cooper before him, Bruno has remained a popular celebrity with the British public following his retirement from boxing.
Document 3: Joe Calzaghe: Joseph William Calzaghe, {'1': ", '2': ", '3': ", '4': "} ( ; born 23 March 1972) is a Welsh former professional boxer who competed from 1993 to 2008. He is a two-weight world champion, having held the unified WBA (Super), WBC, IBF, WBO, "Ring" magazine, and lineal super-middleweight titles, as well as the "Ring" light-heavyweight title. Calzaghe is the longest-reigning super-middleweight world champion in boxing history, having held the WBO title for over 10 years and making 21 successful defences before moving up to light-heavyweight. As his super-middleweight and light-heavyweight reigns overlapped, he retired with the longest continual time as world champion of any active fighter.
Document 4: Crawford Ashley: Crawford "Chilling" Ashley (born Gary Crawford, 20 May 1964 in Leeds is an English professional super middle/light heavy/cruiser/heavyweight boxer of the 1980s, '90s and 2000s, who won the British Boxing Board of Control (BBBofC) Central Area light heavyweight title, BBBofC British light heavyweight title, European Boxing Union (EBU) light heavyweight title (twice), and Commonwealth light heavyweight title (twice), drew with Yawe Davis for the vacant European Boxing Union (EBU) light heavyweight title, and was a challenger for the European Boxing Union (EBU) light heavyweight title against Graciano Rocchigiani, World Boxing Association (WBA) World super middleweight title against Michael Nunn, World Boxing Association (WBA) World light heavyweight title against Virgil Hill, and World Boxing Union (WBU) cruiserweight title against Sebastiaan Rothmann, his professional fighting weight varied from 163 lb , i.e. super middleweight to 211 lb , i.e. heavyweight.
Document 5: Chris Eubank Jr.: Christopher Livingstone "Chris" Eubank Jr. (born 18 September 1989) is a British professional boxer. He has held the IBO super-middleweight title since February 2017, having previously held the WBA interim and British middleweight titles between 2015 and 2016. As of July 2017, Eubank Jr. is ranked as the world's second best super middleweight by BoxRec, sixth by the Transnational Boxing Rankings Board, and seventh by "The Ring" magazine. He is the son of former two-weight world boxing champion Chris Eubank.
Document 6: James DeGale: James Frederick DeGale, {'1': ", '2': ", '3': ", '4': "} (born 3 February 1986) is a British professional boxer. He has held the IBF super-middleweight title since 2015, having previously held the British super-middleweight title from 2010 to 2011, and the European super-middleweight title from 2011 to 2012. As of May 2017, he is ranked as the world's best super-middleweight by "The Ring" magazine and the Transnational Boxing Rankings Board, and third by BoxRec. As an amateur, DeGale represented Great Britain at the 2008 Olympics, winning a gold medal in the middleweight division. By later becoming IBF champion, he became the first British boxer ever to have won both an Olympic gold medal and a professional world title.
Document 7: Wayne Elcock: Wayne Elcock (born 12 February 1974) is a British former professional boxer. Who was managed by Frank Maloney at the start of his career and promoted by Panix promotions before moving after 2 winning fights to Frank Warren, then later to Mick Hennessy. Elcock was trained in Leicester to begin with by Jez brogan, before moving to London to be trained by both Frank Maloney and Alan Smith, along with several visits to america to build on his skills, where Wayne worked with Goody Petronelli the trainer of former world champions Marvelous Marvin Hagler and Steve Collins at his famous Brockton gym. Wayne came back to his home town to team up with Birmingham's most successful boxing trainers brothers Paddy & Tommy Lynch. Knocking out fellow contender Darren Rhodes in 1 minute 30 seconds in Elcocks homecoming and first ever fight with the Lynch brothers in Birmingham at a sold out Aston Events Centre, this setting up his first attempt at the prestigious British title Lonsdale Belt against Plymouth's Scott Dann (boxer) in the first British title fight to ever be scored by three judges, after defeat Wayne bounced back with two back to back knockout victories one of them a British title eliminator winning by TKO against Scotland's Lawrence Murphy, who was the only other boxer to have beaten Elcock, In Wayne's next contest he faced the English champion Steven Bendall who was to be yet another stopped, but this time over eight punishing rounds and setting up his next contest where he would become the first British boxer to beat long standing British champion Howard Eastman to win the coveted Lonsdale Belt in 2007, Elcock also won the Commonwealth title and the minor WBU World Middleweight title becoming the first Birmingham born fighter to ever hold a version of a World title. Elcock challenged for the IBF middleweight title against the unbeaten World champion Arthur Abraham on 8 December 2007, losing by a fifth round knockout. Wayne bounced back from his world title attempt defending the lonsdale belt with a TKO win against local Dudley rival Darren McDermott, before losing the next defence to fellow Birmingham fighter Matthew Macklin in the Battle of Brum Elcock retired at the age of 36 in 2009 to concentrate fully on his other business matters and today Wayne can be found mentoring in schools and behind the counter at Mad Dog's Boxing shop in Boldmere, Birmingham, as well as coaching in the evening at the multi award winning company Wayne Elcock's Box Clever and at his own amateur boxing club Wayne Elcock's Boxing Academy, located in Chelmsley Wood, not far from where he grew up.
Document 8: Chris Eubank: Christopher Livingstone Eubanks (born 8 August 1966), known as Chris Eubank, is a British former professional boxer who competed from 1985 to 1998. He held the WBO middleweight and super-middleweight titles, scoring victories over six world champions, and is ranked by BoxRec as the third best British super-middleweight boxer of all time.
Document 9: George Francis (trainer): George Francis ("c." 1929–2002) was a British boxing athletic trainer who trained world champion boxers such as Frank Bruno, John Conteh, John Mugabi, and Cornelius Boza Edwards. He was found hanged at his home in London, apparently having committed suicide. He was 73.
Document 10: Floyd Mayweather Sr.: Floyd Mayweather Sr. (born October 19, 1952) is an American former professional boxer who competed from 1974 to 1990, and has since worked as a boxing trainer. Fighting at welterweight during the 1970s and 1980s, Mayweather Sr. was known for his defensive abilities and overall knowledge of boxing strategy. He is the father and former trainer of five-division boxing champion Floyd Mayweather Jr., and is credited for teaching his son the defensive skills that made him a champion.
Document 11: John Murray (boxer): John Murray (born 20 December 1984) is a British former professional boxer who competed from 2003 to 2014. He held the English lightweight title from 2007 to 2008; the British lightweight title twice, from 2008 to 2010; and the European lightweight title from 2010 to 2011. He also challenged once for the vacant WBA lightweight title in 2011. John is the brother of British former Olympian Joe Murray. Since retiring, Murray has opened his own gym – Murray Machines Gymnasium – in Reddish, where he trains both amateur and professional boxers.
Document 12: Charles C. Smith (boxer): Smith was born in Macon, Georgia, likely into slavery, and he and his mother moved north in 1865. His birth date is given as 3 May 1860, but since he supposedly did not begin boxing until he was 19 and claimed the title in 1876, the birth year likely is spurious. Some sources cite 1869 as the year his boxing career began, and others 1879, which would have been three years after he claimed the championship.
Document 13: George Groves (boxer): George Groves (born 26 March 1988) is a British professional boxer. He has held the WBA (Super) super-middleweight title since May 2017, and previously the European, British, and Commonwealth super-middleweight titles between 2010 and 2014. As an amateur, Groves won the ABA middleweight title twice, in 2007 and 2008.
Document 14: Freddie Roach (boxing): Frederick Steven "Freddie" Roach (born March 5, 1960) is an American boxing trainer and former professional boxer. Roach is widely regarded as one of the best boxing trainers of all time. He is the enduring boxing coach of the eight-division world champion Manny Pacquiao, five-time and four-division World Champion Miguel Cotto, former WBC Middleweight Champion Julio César Chávez, Jr., defensive master and three-time world champion James Toney, former UFC Welterweight Champion Georges St-Pierre, as well as top prospects Jose Benavidez, Peter Quillin, and Vanes Martirosyan. Roach was the trainer of former two-time world champion and notable women's champion Lucia Rijker. He has also trained former junior welterweight champion Amir Khan.
Document 15: Henry Wharton (boxer): Henry Wharton ( (1967--) 23 1967 (age 50 ) ) born in Leeds is an English professional middle/super middle/light heavy/cruiserweight boxer of the 1980s and '90s who won the British Boxing Board of Control (BBBofC) British super middleweight, European Boxing Union (EBU) super middleweight title, and Commonwealth super middleweight title, and was a challenger for the World Boxing Council (WBC) super middleweight title against Nigel Benn, and Robin Reid, and World Boxing Organization (WBO) super middleweight title against Chris Eubank, his professional fighting weight varied from 162 lb , i.e. middleweight to 179 lb , i.e. cruiserweight.
ground_truth: world champions