[1] Born in Armenia, Karapet Karapetyan moved to the Netherlands aged sixteen in 1998 in the aftermath of the First Nagorno-Karabakh War, initially living in Rotterdam before settling in Nijmegen with his parents and two sisters.
[3] Having turned professional in 2002, Karapetyan spent a number of years honing his skills on the Dutch kickboxing and Muay Thai scene in a rather unremarkable beginning to his career.
On June 4, 2006, he competed in the World Full Contact Association (WFCA) 2006 Super Middleweight (-76.2 kg/168 lb) Tournament in Druten, Netherlands, outpointing Mustafa Yılmaz in the quarter-finals and Winston Martens in the semis before losing to Joost Bauhaus, who he was already 0-1-1 against in two previous fights, in the final.
Replacing Grega Smole who withdrew from the fight,[4] Karapetyan challenged Nieky Holzken for his WFCA World Super Middleweight K-1 Championship in Eindhoven, Netherlands on February 12, 2012, losing by decision after five rounds.
[7] Turning his hand to professional boxing, he won the Ben Bril Memorial 6 Light Heavyweight (-79.3 kg/175 lb) Grand Prix in Amsterdam, Netherlands on October 15, 2012, beating Jeremy Blijd in the semi-finals and Marino Schouten in the final.
[12][13][14] He rematched Alexander Stetsurenko on the Glory 10: Los Angeles undercard in Ontario, California, United States on September 28, 2013, and avenged his earlier defeat to the Russian with a unanimous decision victory.
[15][16] In his return to boxing on October 14, 2013, he was unable to retain the title that he won a year previously as he was eliminated by Joos Poulino in the semi-finals of the seventh edition of the Ben Bril Memorial tournament.