He is a former M-1 Global welterweight champion and competed in the Ultimate Fighting Championship (UFC) and Professional Fighters League (PFL).

Kunchenko started his professional MMA career since 2013 and fought primary in Russia under various promoters, notably M-1 Global.

However, it was announced on July 29, 2019 that Staropoli was forced to pull out of the fight due to a broken nose[8] and was replaced by Gilbert Burns.

[12] On February 18, 2021, Kunchenko announced on his Instagram that he had signed a 5 fight contract with PFL for their 2021 season, and would be competing in the organization's welterweight division.

[19] Kunchenko faced Shamil Musaev on July 28, 2023 at RCC 16, getting finished in the first round after a spinning back kick to the body and ground and pound.