The purpose of the present study was to investigate the relationship between emotion regulation strategies (reappraisal and expressive suppression) and psychological competitive ability during sports games. A total of 492 athletes completed the Japanese version of the Emotion Regulation Questionnaire (EQR-J) and the Diagnostic Inventory of Psychological-Competitive Ability for Athletes (DIPCA.3). The DIPCA.3 was used to assess psychological competitive ability as the dependent variable, and multiple regression analysis was conducted to analyze the effects of reappraisal and expressive suppression on psychological competitive ability. The results indicated that reappraisal had a positive effect on all 5 factors of the DIPCA.3. The participants were also classified into 3 clusters: the first cluster comprised players who had a strong tendency to use reappraisal, the second cluster comprised players who had a strong tendency to use expressive suppression, and the third cluster comprised players who did not use either of the emotion regulation strategies. Subsequently, one-way analysis of variance was conducted with each cluster as an independent variable and the DIPCA.3 as the dependent variable. The players who had a weak tendency to use both reappraisal and suppression had the lowest scores for 4 of the 5 factors. These findings indicate that athletes who use reappraisal or suppression as an emotion regulation strategy have better psychological competitive ability during competitive games. Original article published in Japan J. Phys. Educ. Hlth. Sport Sci. 66: 561-572, 2021 (in Japanese)
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