Objective: This study was performed to survey the relationship between coaches’ and athletes’ competitive anxiety, and their performance.Methods: This is a descriptive correlational study performed using a demographic questionnaire, an athletic performance checklist, and sport competition anxiety test designed by Martens consisting of 15 questions. The study population consisted of 540 players and 60 coaches from 60 futsal teams (5 main players, 4 reserves, and 1 coach for each team). All of the players and the coaches were surveyed in a census method and no sampling was done. The data were analyzed by SPSS software, using chi-square, and Pearson correlation coefficient test.Results: The results showed a positive significant relationship between the coaches’ anxiety level and sport competition anxiety level in the athletes (p=0.019, r=0.56). It also showed that there was a negative significant relationship between the coaches’ anxiety level and performance level of the athletes (p=0.012, r=-0.80). A negative significant relationship was also demonstrated between the athletes’ competitive anxiety level, and their athletic experiences (p<0.001, r=-0.45) and age (p=0.001, r=-0.37).Conclusions: Coaches and officials should consider sport competition anxiety among athletes before and during competitions. Formal and planned competitions, training sessions, and preparation practices can be a major factor assisting to decrease athletes' anxiety.