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Purpose:  The objectives of the present study were to analyze the relationship between psychological variables (self-esteem, anxiety and self-confidence) assessed before the competition and physical and physiological responses demonstrated during the competition in soccer referees and to compare these psychophysical and physiological responses by category (CAT; national and non-national).  Method:  A total of 153 soccer referees participated (age Mage = 23.2; SD = 4.8 years; experience Mage = 6.0; SD = 4.5 years) in the study. The CSAI-2 and Rosenberg questionnaires were conducted before the match, and match performance data were collected using GPS devices.  Results:  The results showed significant differences in self-esteem and self-confidence across CATs ( p  &lt; .001;  d  &gt; .84). The national referees had higher psychological and physical-physiological responses (mean and maximum heart rate) Some correlations were observed among the psychophysical and physiological responses, CAT and age, demonstrating that the age could explain up to 48.4% of the variance the referee CAT ( p  &lt; .001) and this CAT could explain self-esteem, anxiety and self-confidence by up to 20% of the variance.  Conclusions:  national referees presented better psychological responses prior to the competition, and also obtained greater physical and physiological records, which could be translated into a better position on the pitch in conflicting plays in order to make a right and just decision.

National vs. Non-National Soccer Referee: Physiological, Physical, and Psychological Characteristics