Perceived exertion is a subjective measure of objective physical demands. In sport psychology it is about judgment of magnitude of training load. Previous research have demonstrated existance of individual differences in perceived exertion based on intensity and duration of exercise, based on number of days prior to a competition and some individual characteristics. The aim of the present study was to expand previous results about exertion fluctutation across week by trying to find a relationship with personality characteristics. Research was conducted on amateur footbal club competing in fourth division of Croatian footbal association. Exertion of players was monitored for five months (second half of the season). Measures of personality were conducted at the end of the season. Exertion was operacionalized as an average exertion by the day in week. Results confirmed previous researches about existance of weekly cycle of exertion in football training. We have also found positive relationship between openness to experience and days prior to the game but negative relationship with match day. Agreeableness showed positive correlation with midweek exertion and extraversion showed negative relationship with exertion two day prior to the match.