Amateur career Varga began competing as an amateur in 2006 at the age of twenty and, after amassing an 8–0 record by 2008, spent three months training in Thailand at Eminent Air,
Fairtex, Por Pramuk and Sinbi Muay Thai. Upon his return to Canada, he was given the chance to fight for his first title and he
outpointed Carlos Garcia to take the
ISKA Amateur North American Light Welterweight (-64.5 kg/142.2 lb) Oriental Championship. Now a national and continental belt holder, Varga faced Joe Concha in an ISKA super lightweight amateur world title match in his hometown of Victoria on January 24, 2009. He scored a knockdown in the fifth and final round and won by decision. He made the first defence of this title against Emil Salva on April 4, 2009, in
Langford, British Columbia. After being dropped with a right
overhand late in round one, Varga was able to rally back to win by a third round
technical knockout that sent the Romanian through the ropes at the end of round three. On June 12, 2009, he made his final title defence with a wide points victory over Matt Embree in
Victoria, British Columbia. Following this, Varga moved back up in weight to challenge for the ISKA amateur light welterweight world title against Devon Henry in Victoria on July 20, 2009. He won by
split decision after a back-and-forth fight. In his final bout as an amateur, he took a
unanimous decision over Nathan Smandych on October 3, 2009, in Victoria to defend his ISKA light welterweight strap and bring his record to 15–0.
Professional career WKN and WKF titles Having fought mostly under
Oriental rules during his amateur career, Varga ventured into the
Muay Thai ruleset after turning professional and spent the early part of his career fighting abroad. In his pro debut on December 12, 2009, he travelled to
Flushing, New York, United States and defeated local fighter Omar Ahmed by unanimous decision. He followed this up with another unanimous decision win over Justin Greskiewicz on February 19, 2010 before being invited to compete in an eight-man tournament held in New York on July 17, 2010. Despite entering as the tournament favourite, he was eliminated at the quarter-final stage when he lost to Terrence Hill via a controversial unanimous decision. The Varga camp attempted to have the result overturned and filed a complaint with the
WKA a week later. Their bid was rejected, however, as it had been submitted too late. He was nominated for the 2010 "North American Fighter of the Year" award by
Muay Thai Authority but lost out to
Kevin Ross. He returned to the ring on January 8, 2011, at a
Canada vs. China event in
Jinan, China where he won by unanimous decision under
sanshou rules. His rematch with Justin Greskiwicz was rescheduled for ''Battle at Bally's 2'' in
Atlantic City, New Jersey, US on August 11, 2011, but fell through again. Instead he took a second consecutive title match in which Varga
knocked out Roy Tan in the third round to take the World Kickboxing Federation (WKF) World Light Welterweight (-64.5 kg/142 lb) K-1 belt in
Vienna,
Austria, on September 24, 2011.
Glory Kickboxing After a year out of the ring, he signed with
K-1 and made his promotional debut at the
K-1 World Grand Prix 2012 in Los Angeles in California on September 8, 2012, against
Lerdsila Chumpairtour. Varga dropped the three-time
Rajadamnern Stadium champion with a
spinning backfist in the opening round but it was ruled a slip by the referee. Nonetheless, he kept a high tempo and fought aggressively en route to winning by unanimous decision. He was recruited into
Glory's 65 kg/143 lb class in 2013 and was amongst the division's eight elite fighters at the
Glory 8: Tokyo - 2013 65kg Slam tournament in Tokyo, Japan on May 3, 2013. He dominated
Abdellah Ezbiri en route to a unanimous decision win in the quarter-finals, but lost to the eventual champion
Yuta Kubo by the same margin in the semis. Varga was set to face
Shane Oblonsky at
Glory 11: Chicago - Heavyweight World Championship Tournament in
Hoffman Estates, Illinois, US on October 12, 2013. However, Oblonsky withdrew due to injury and was replaced by Jose Palacios. Varga defeated Palacios via unanimous decision. He was then set to make a defence of his WKN title for the first time against Jessy Petit-Jean in Belgium on November 9, 2013, but the bout was cancelled for undisclosed reasons. Varga won the 2014 Glory Featherweight Contendership Tournament at
Glory 17: Los Angeles in
Inglewood, California, US on June 21, 2014, defeating Yodkhunpon Sitmonchai in the semi-finals and
Shane Oblonsky in the final, both via unanimous decision. On April 3, 2015, Varga defeated #1 ranked
Mosab Amrani to become the inaugural GLORY Featherweight World Champion. The title fight took place on Glory 20 in Dubai. The decision win was unanimous with the 3 judges scoring 50–46, 48–47, and 49–46. He was scheduled to make his first title defense against
Serhiy Adamchuk at
Glory 25: Milan. Adamchuk won the fight by unanimous decision, handing Varga his first loss in over two years. Two months later, Varga fought Liu Wei at the Hero Legends event in
Hainan, China, for the Hero Legends Featherweight title. Varga won the fight by unanimous decision. He then challenged for the Glory featherweight title, in a rematch with
Serhiy Adamchuk. Varga won the fight by majority decision. He was scheduled to defend his title three months later, at
Glory 34: Denver, against
Robin van Roosmalen. Van Roosmalen won the fight by fourth-round TKO.
Bellator Kickboxing Varga subsequently left Glory, and signed with
Bellator Kickboxing. He made his promotional debut at
Bellator Kickboxing 6: Budapest against Gabor Gorbics, losing the fight by split decision. Varga would rebound from this loss with a decision win against Lu Yichen at Hero Legends and a second-round TKO of Roberto Gheorghita at
Bellator Kickboxing 8: Florence. Two months later, Varga fought
Tie Yinghua, losing by unanimous decision. On July 14, 2018, in Rome, Italy Varga won his 6th professional world title. He defeated Kevin Ross by 1st-round TKO to win the Bellator Kickboxing Featherweight World Title. He defended his title against Shan Cangelosi at
Bellator Kickboxing 11. He defeated Cangelosi by knockout in the first round. Varga defended his title for the second time against Cristian Faustino at
Bellator Kickboxing 12, winning by unanimous decision. On March 19, 2021, Varga was released by Bellator as he had fulfilled his contract and Bellator would no longer be featuring Kickboxing events. Varga still held the Bellator World Kickboxing title.
Karate Combat On December 22, 2021, it was announced that Varga had signed an exclusive contract with
Karate Combat and will debut in the Lightweight division in the 2022 season. == Mixed martial arts career ==