Early years

Fadi Merza was born in Derbassiah, Syria to an Assyrian family. Fadi was ten years old, when he and his family left his native Syria and moved to Vienna. "My parents just wanted to provide us a secure future. Within just six months, I had mastered the German language", said Merza in a 2012 interview. At the age of 16, Fadi started training kickboxing. After fighting as an amateur in the kickboxing circuit, he switched to Muay Thai. He was awarded his first title at age 18, when he won the WPKL Junior World Super Welterweight Championship during an event near Vienna, Austria on November 15, 1997.

Having become a youth champion, Merza was given the chance in 2000 to fight for the World Muay Thai Middleweight Championship of the World Professional Kickboxing Council (WPKC), one of the minor sanctioning organizations in the world. Fadi decisioned his opponent to win his second World title. In May 2001, the European Thaiboxing Championship of the more prestigious WKA was at stake. He faced off against the routined Brit Eugene Valerio at the first Vienna Fight Night. Valerio was troubled by Fadi’s accurate knee strikes, suffering a cut above his eye. A well placed kick to the midsection finally proved to be the Brit’s downfall, by breaking his forearm. Fadi won via TKO in the second round.

A year later, again in Vienna, Fadi challenged Mohammed Ouali for the vacant WKA Thaiboxing World Middleweight title. The fight went to the distance after five grueling rounds. In front of his hometown crowd Fadi lost a close decision. Despite his defeat he was signed by Austrian businessman Marcus Bauer for his kickboxing organization SuperLeague.

Fighting for SuperLeague

Merza made his debut in SuperLeague at the kick off show in Vienna in May 2003. Fadi showed a dominant performance against Takahiko Shimizu from Japan. At his second SuperLeague appearance, in Wuppertal, Germany, he faced off against another Japanese fighter, Akeomi Nitta. Fadi dominated the first two rounds, but the fight soon turned into a tough battle. After five hard rounds, Merza got a decision victory.

In January 2004, Merza challenged Kamal El Amrani for his IKBO World Middleweight Championship belt. In front of a sold-out crowd, again going to distance in a spectacular fight, Fadi lost a close decision against his well-known Moroccan adversary. Fadi Merza claimed the number three spot in the official SuperLeague middleweight rankings with victories over Peter Crook, Jose Reis, Petr Polak and Malaipet Sasiprapa and losing only his fights against Ole Laursen, Sahin Yakut and John Wayne Parr. Ending his successful SuperLeague career, Fadi faced Alviar Lima for the vacant SuperLeague Middleweight belt, losing a close decision. His fight against Lima is still considered by many fight fans as the best bout in SuperLeague history.

King's Cup participation

Merza was able to return to the winner's column in impressive fashion by knocking out Ümüt Demirörüs and Rico Recineu, in one night to win the King’s Cup qualifier tournament in Switzerland in September 2009. Fadi earned himself a spot in the King's Cup, the most prestigious and biggest Muay Thai tournament in the world, which is held once a year in Bangkok, Thailand. Cheered on by over 150,000 spectators, Merza defeated his quarter final opponent, Enriko Kehl from Germany. Kehl hit the canvas twice, after being hit with hard elbows and knees, giving Merza the well deserved decision victory. Unfortunately, Fadi had to withdraw from the tournament due to a ruptured ear drum, as well as a cut over his right eye, forcing the ring-side doctor to not give his consent for another fight.

World title success

After fighting for SuperLeague, Merza had regular appearances in international promotions all over the world. Merza was given the chance to fight for a world title again on February 7, 2010, taking on Luca D’Isanto for the ISKA Oriental Light Middleweight Championship. Staged at the Wiener Stadium in the centre of Vienna, Merza hurt Di Santo in the first round with a knee to the head. The Italian took an eight count but wasn’t ready to give up. Merza had to earn the title winning a clear unanimous decision. Before the year was done, he added one more world title to his mantlepiece, outpointing Bachir Maroun in Munich, Germany on August 25, 2010 to take the WKA K-1 rules World Super Welterweight belt.

On January 22, 2011, Fadi faced Joakim Karlsson in Vienna, Austria. A rematch as Karlsson defeated him in their first encounter. He decisioned the Swede over five rounds for the WKA K-1 rules World Middleweight title. Merza made an impressive six successful title defenses during his reign as champion. For his first defense, he chose to fight Dan Balsemao from Portugal in a rematch. Balsemao had performed well in their first encounter, winning the fight on points. However, this time Merza bested the Portuguese over five rounds to defend the belt.

Fadi's next title defense pitted him against Darko Delic. The kickboxer from Bosnia and Herzegovina was not regarded as a top contender and it took Merza only two rounds to end the fight. His next defense was against a much tougher opponent. In September 2012, he faced the highly regarded Dane Mohammed El Mir. Merza proved that he still belonged on the world stage when he defeated El Mir on points. In his sixth defense, Fadi was challenged by Jason Woodham, a WMC MAD champion from England. Merza dominated the fight from start to finish. In the first round, the Brit went to the canvas. Clearly not having recovered, Manhood went down again in the second round after a two right hooks and a left jab combination. The referee intervened and stopped the fight.

On May 4, 2012, Merza eventually lost his WKA K-1 rules World Middleweight title in his seventh title defense. After five rounds, almost everyone at ringside saw it as a draw. However, the fight went in favor of Fadi's opponent Fernando Calzetta, who was awarded a points win.