Background : Sport injuries are inevitable events associated with school sports. They can be prevented if they are well scrutinized. This research was conducted to determine the frequency rate of trauma in student competitions in Kashan institutional sport contest during 2005-2006.

Materials and methods : In this descriptive cross-sectional study on 80 sport events including 2256 student athletes, at the elementary, intermediate, and high school levels injuries were recorded by direct observation of the sport arenas at the city of Kashan during the educational year 2006-2007 championship events. All injuries due to any cause during the competitions were recorded.

Results : A total of 50 injuries were recorded during the competitions. The highest frequency of injuries was observed in high school competitions with 21(42%) cases followed by elementary school competitions and intermediate school with 17(34%) and 12(24%) cases respectively. The highest frequency of trauma was observed in Basketball competetions with 16 (32%) cases and 4.7 per 100 athletes, followed by Football and Handball by 13 (26%) and 3.6 per 100 athletes, and 7 (14% ) cases and 3 per 100 athlete injuries, repectively.

Conclusion: The pattern of sport injuries in this research was similar to those found in the literature. It is suggested that special care be taken in all sport competetions , particularly care be devoted to Basketball competetions at high school levels.