Sergey Spivak, known as ‘The Polar Bear,’ is a Moldovan professional mixed martial artist competing in the UFC Heavyweight division, bringing his disciplined approach and proven track record to global audiences. After making his professional mixed martial arts debut in September 2014 with Ukrainian promotion Real Fight Promotion, Sergey Spivak quickly established himself as a dominant force in the heavyweight division. His debut fight against Andrey Serebrianikov resulted in a first-round TKO victory, setting the tone for a career defined by decisive finishes. Spivak rapidly showcased proficiency in both striking and grappling, securing early wins through various methods including TKO, kimura, and armbar submissions across regional promotions like World Warriors Fighting Championships (WWFC), N1 Pro, and Eagles Fighting Championship.
Throughout his UFC tenure, Spivak has faced numerous top-tier opponents, consistently performing at an elite level. He earned two coveted ‘Performance of the Night’ bonuses for his submissive victories: first against Derrick Lewis in February 2023, and most recently for his dominant win over Marcin Tybura in August 2024. His technical superiority is evidenced by maintaining one of the highest takedown accuracy percentages in UFC Heavyweight division history at an impressive 65.1%, alongside securing the third most takedowns landed in the division’s history with 28. Currently, Spivak holds an active status in the highly competitive UFC Heavyweight Division, where he is ranked #7 as of September 9, 2025.
His formidable professional record stands at 17 wins and 6 losses, including 7 wins by knockout, 8 by submission, and a remarkable 11 first-round finishes, underscoring his consistent ability to conclude fights decisively. His continued ascent within the UFC positions him as a significant and marketable talent in mixed martial arts.