UFC fans can look forward to an exciting conclusion to 2025 with six high-stakes championship bouts scheduled over the final two months. The year’s climax features notable fights such as Tom Aspinall defending his heavyweight title against Ciryl Gane at UFC 321 in Abu Dhabi, and a new strawweight champion being crowned between Virna Jandiroba and Mackenzie Dern, following Zhang Weili's move to flyweight. Additionally, Islam Makhachev will attempt to claim a second title when he challenges Jack Della Maddalena for the welterweight belt at UFC 322, which also features Zhang competing against Valentina Shevchenko for the flyweight title. ESPN ranks these bouts based on their quality and significance, with the most anticipated being the Valentina Shevchenko vs. Zhang Weili fight, a highly competitive matchup with major implications for women's MMA. Other key fights include Merab Dvalishvili defending his bantamweight title against Petr Yan, Alexandre Pantoja facing Joshua Van in flyweight, and Makhachev’s potential to reclaim the lightweight crown. The article highlights the divisions' current dynamics, fighter form, and the stakes involved, making these matchups must-watch events for MMA enthusiasts.