Joanna Jędrzejczyk has five losses against three opponents on her MMA record. For a list of Jędrzejczyk's best fights, refer to "Best fights of Joanna Jędrzejczyk".
On June 11, 2022 Joanna Jędrzejczyk faced off against Zhang Weili in a strawweight bout at age 34. She was coming in with a record of 16-5 (5). Jędrzejczyk lost the fight via 2nd-round KO.
On March 7, 2020 Joanna Jędrzejczyk fought Zhang Weili in a strawweight title fight for Weili's UFC Women's Championship title. Jędrzejczyk was 32 years old and with a record of 16-4 (5), and Weili was 29 years old and with a record of 20-1 (17). Jędrzejczyk lost the fight via 5-round split decision.
On December 8, 2018 Joanna Jędrzejczyk fought Valentina Shevchenko in a flyweight title fight for the UFC Women's Championship title. Jędrzejczyk was 31 years old and with a record of 15-3 (5), and Shevchenko was 30 years old and with a record of 15-3 (11). Jędrzejczyk lost the fight via 5-round unanimous decision.
On April 7, 2018 Joanna Jędrzejczyk fought Rose Namajunas in a strawweight title fight for Namajunas' UFC Women's Championship title. Jędrzejczyk was 30 years old and with a record of 14-2 (5), and Namajunas was 25 years old and with a record of 7-3 (6). Jędrzejczyk lost the fight via 5-round unanimous decision.
On November 4, 2017 Joanna Jędrzejczyk met Rose Namajunas in a strawweight (UFC Women's Championship) title defense fight. Jędrzejczyk was 30 years old and with a record of 14-1 (5), and Namajunas was 25 years old and with a record of 6-3 (5). Jędrzejczyk lost the fight via 1st-round TKO and lost the title.
