Joanna Jędrzejczyk

The strawweight title reign

Joanna Jędrzejczyk held the UFC women's strawweight title from March 2015 to November 2017 — the longest single-reign in the division's history at the time, with five consecutive title defenses. She retired in 2022 with a 16-5 record after the second Zhang Weili loss at UFC 275 ended her competitive prime.

Her résumé includes wins over Carla Esparza (the title-winning bout at UFC 185), Jessica Penne, Valérie Létourneau, Cláudia Gadelha (twice), Karolina Kowalkiewicz, Jéssica Andrade (UFC 211), Tecia Torres (UFC 218), and the deep strawweight bracket of her era.

The Polish Muay Thai foundation

Joanna was a multi-time Muay Thai world champion before her MMA career — six IFMA amateur world titles and one WBC professional Muay Thai world championship between 2008 and 2012. The Muay Thai foundation produced the highest-volume technical striking in women's MMA history.

The technical signature:

• Lead-hand jab and lead hook: textbook Muay Thai-influenced boxing.
• Body kicks and leg kicks: high-frequency low-and-middle kicks that drained cardio across five rounds.
• Clinch knees: the Thai plum knee strike that finished Karolina Kowalkiewicz at UFC 205 in November 2016.
• Defensive head movement: pull-counter and slip-and-counter work integrated with the volume offense.

The five title defenses

Joanna's five UFC strawweight title defenses (Jessica Penne, Valérie Létourneau, Cláudia Gadelha, Karolina Kowalkiewicz, Jéssica Andrade) were technically clean displays of high-volume Muay Thai applied to MMA. The Cláudia Gadelha rematch at TUF 23 Finale in July 2016 was the most-tested of the defenses — Gadelha's wrestling pressure controlled rounds 1 and 2 before Joanna's striking and conditioning closed out rounds 3-5.

The Rose Namajunas KO and the post-2017 era

The November 2017 UFC 217 loss to Rose Namajunas was the most-decisive upset in women's MMA history. Namajunas KO'd Joanna with a counter rear straight in round 1 — the bout ended at 3:03 of round 1 and ended the title reign.

The rematch at UFC 223 in April 2018 went the other way — Namajunas won by unanimous decision (49-46, 48-47, 48-47), and Joanna's championship era was effectively over.

The Valentina Shevchenko bout (flyweight)

The March 2020 UFC 248 bout against Valentina Shevchenko (Joanna moved up to flyweight for the title shot) was Shevchenko's most technically refined performance. Shevchenko won by unanimous decision (49-46, 49-46, 49-46) in a five-round bout that demonstrated the size and reach advantage Shevchenko held over the strawweight-frame Joanna.

The Zhang Weili wars

The two Zhang Weili bouts (UFC 248 in March 2020 and UFC 275 in November 2021) were Joanna's title-eligibility bouts. The first was the historic five-round war (Zhang by unanimous decision) — widely regarded as the greatest women's MMA fight in history. The rematch was a Zhang KO via right-hand counter in round 2.

The first Zhang bout in particular elevated Joanna's all-time-best argument despite the loss. The bout's quality and the willingness to engage in a technical war at championship pace produced the most-replayed women's MMA broadcasting moment of the post-Holm-Rousey era.

The legacy

Joanna's case for the women's strawweight historical canon is the five-title-defense reign, the UFC 248 war with Zhang Weili, and the Polish Muay Thai foundation that influenced the next generation of women's MMA strikers. Her impact on European women's MMA — particularly Polish and broader Central European female contenders — has been generational.

The Rose KO is the structural ceiling on her case for the all-time elite, but the body of work outside that single bout is the strongest women's strawweight historical case before the Zhang era.