An interesting study was published last month in the Journal of Combat Sports Medicine shedding light on how many head strikes professional boxers are exposed to in the ring.
The study, titled Epidemiology of Head Strikes Absorbed by Professional Boxing Fighters, analyzed publicly available professional boxing data from 2023 through 2025. Data was reviewed documenting how many head strikes these boxers were exposed to breaking the analysis down to different factors such as weight class, fight result, total fight time, and
ead strikes absorbed by winners and losers.
Unsurprisingly losing fighters absorbed far more head strikes than winners. When boxers lost by KO or TKO this disparity was even greater suggesting the average KO/TKO losing fighter does not lose by a single hard shot but by cumulative damage.
Weight classes also made a difference with heavier winning fighters absorbing fewer head strikes than lighter weight class winning fighters.
The data led to the following conclusions:
Professional boxing fighters who lose bouts absorb substantially more head strikes per minute than fighters who win, and this relationship is most pronounced in KO/TKO bouts. Male fighters demonstrated this pattern across nearly all weight classes, while female fighters showed a similar trend with more limited significance due to smaller subgroup sizes. Heavier male winning fighters absorbed fewer head strikes per minute than lighter male winning fighters, suggesting that weight class may influence exposure dynamics.
These findings support the use of head strikes absorbed per minute as a useful descriptive metric for characterizing bout-level repetitive head impact exposure in boxing. Future studies should link these exposure patterns to longitudinal neurologic, imaging, and cognitive outcomes in order to better inform fighter safety protocols, medical oversight, and potential exposure-monitoring strategies in combat sports.
The below useful charts breakdown the data for male and female fighters across weight classes.
Combat Sports Law 