In the 2011 World Championships, he beat the No.1 seeded and reigning champion Cuban Roniel Iglesias Solotongo on points.[4][5] In the gold medal bout, he was beaten by Everton Lopes of Brazil following the encounter ended 26–23.[6] Finished the championship as silver medalist, Berinchyk was a part of the Ukraine national team, topped the medal table.[6][7]
Berinchyk made his professional debut against Tarik Madni on 29 August 2015. He won the fight by a fourth-round stoppage, as Madni retired at the end of the round. Berinchyk amassed a 7-0 record during the next two years, with four stoppage victories.[8]
Berinchyk was booked to face Allan Vallespin for the vacant WBO Oriental lightweight title on 16 December 2017, in the main event of a card which took place at the Ice Palace Terminal in Brovary, Ukraine. He won the fight by a dominant sixth-round knockout.[9] Berinchyk made his first WBO Oriental title defense against Jose Luis Prieto on 23 June 2018. He won the fight by a sixth-round stoppage, as Prieto retired at the end of the round.[10]
Berinchyk was scheduled to face for the vacant WBO International lightweight title Rosekie Cristobal on 22 December 2018. He won the fight by a seventh-round technical knockout.[11] Berinchyk made his first WBO International title defense against the veteran Nihito Arakawa on 20 April 2019.[12] He won the fight by unanimous decision, with scores of 120-107, 118-109 and 120-107.[13] Berinchyk made his second title defense against Patricio Lopez Moreno on 5 October 2019.[14] He won the fight by unanimous decision, with scores of 120-109, 120-108 and 120-108.[15]
Berinchyk was booked to make his third title defense against the 21-1 Hector Edgardo Sarmiento on 22 February 2020. He won the fight by unanimous decision, with scores of 117-112, 118-110 and 117-111.[16] Berinchyk made his fourth WBO International title defense against Viorel Simion on 8 October 2020. Simion retired from the bout at the end of the seventh round.[17]
Berinchyk made the fifth defense of his WBO regional title against Jose Sanchez on 21 March 2021. He made quick work of Sanchez, as he won the fight by a third-round technical knockout.[18] Berinchyk made his sixth title defense against the former WBO International titleholder Isa Chaniev on 19 December 2021.[19] He won the fight by unanimous decision, with scores of 118-112, 116-112 and 118-111.[20]
WBO Lightweight Champion
Berinchyk vs. Navarrete
Berinchyk was scheduled to face Emanuel Navarrete for the vacant WBO lightweight title at Pechanga Arena in San Diego, California on May 18, 2024.[21] Berinchyk won the fight by split decision with the scores 115-113, 116-112, 112-116.[22][23]
Berinchyk made his bare-knuckle boxing debut against the former UFC fighter Artem Lobov at Mahatch FC 6 on 24 July 2021.[24] Lobov retired from the bout at the end of the fourth round.[25]