Mateusz Rębecki Record: 20-5-0

UFC run

Rębecki entered the UFC with a head of steam and kept winning. He outpointed the unbeaten Nick Fiore on debut in early 2023, then stopped Loik Radzhabov with strikes at UFC on ABC 5 and submitted Roosevelt Roberts with a first-round armbar at UFC 295, running his Octagon record to a perfect 3–0. The first real adversity came in 2024, when veteran Diego Ferreira stopped him late in a back-and-forth war. Rębecki rebounded immediately with a hard-fought split-decision win over Myktybek Orolbai at UFC 308. Since then the results have tightened against the division's stiffer competition: he dropped a unanimous decision to Chris Duncan, a majority decision to Ľudovít Klein at UFC 321, and was submitted by Grant Dawson in 2026.

Fighting style

Rębecki is an aggressive, all-action lightweight who blends a black-belt grappling base with genuinely heavy hands. His finish breakdown tells the story of a well-rounded threat: of his 20 wins, nine have come by knockout and seven by submission, an 80% finish rate. He pressures forward, mixes level changes with power punching, and is dangerous in scrambles where his crucifix control and armbar entries shine. The honest weaknesses are reach and rounds-management at the elite level; his recent decision losses have come when longer or more disciplined strikers kept him at distance and forced him into the championship rounds.

Career highlights

• FEN lightweight champion — won Poland's top regional title in 2018 with a fourth-round body-shot knockout and reigned as one of Europe's premier 155-pounders.
• Perfect UFC start — opened his Octagon tenure 3–0 with finishes of Loik Radzhabov and Roosevelt Roberts.
• 80% finish rate — nine knockouts and seven submissions across 20 wins, reflecting a rare two-way finishing threat.