Joanna Jedrzejczyk vs Rose Namajunas — Fight recap

Rose Namajunas defeated Joanna Jedrzejczyk by unanimous decision over five rounds on April 7, 2018, in a stunning upset that saw the challenger dethrone the dominant champion. Despite landing 145 significant strikes at 40% accuracy compared to Namajunas's 105 strikes at 34%, Jedrzejczyk's volume advantage proved insufficient as the judges favored Namajunas's precision and timing.

Jedrzejczyk attempted 356 total strikes with particular success to the legs (54 of 62) and head (64 of 257), while Namajunas landed cleaner combinations, especially to the head with 85 of 270 strikes. The fight remained largely striking-focused with minimal grappling—Namajunas secured one takedown and accumulated just 56 seconds of control time.

Namajunas's composed counter-striking and ring generalship throughout the five rounds overcame the former champion's relentless output, marking a significant power shift in the women's strawweight division.