compared of the Performance Iran in the Summer Olympics to countries in Asia, Africa and Central and South America

  The purpose of the research was the analysis of the Iran attendance in 15 Period of the Olympic Games and comparison with other contingents counters. Research method was descriptive and type of analytic study. Sample was 15 period of Iran attendance in summer Olympic games and was equal to society. Data gathered from classify and analyzing of articles, reports and resource related to Olympic Games. Also, for analysis data descriptive, inferential statistics and lexicograph method was used. Results showed that Iran attendance in Olympic Games from 1948-2004 gain priority 9 0/0, 4 0/0 and 16 0/0 of distributed medals of Asia, Africa and Central and South America contingents and success percent (medal/attendance number) of Iran in three sport of wrestling, weightlifting and taekwondo was 93 0/0, 80 0/0 and 66 0/0. Iran performance in 16, 19 and 30 period of Olympic Games mutation and among this periods decrees process. Weakest performance of Iran from viewpoint of distrusted medal and efficiency ratio (medal/population) was between 1988 until 1996. Iran in Beijing 2008 Olympic Games had weakest performance and in the world, Asia, Africa and Central and South America contingents in priority was 17, 5, 2 and 1 rank. So, mean rank of Iran in all attendant Olympic Games in priority was 31.26, 4.33, 2.56 and 3.40 in the world, Asia, Africa and Central and South America contingents. According to Olympic Games distribute table of medal and ratio efficiency and compare to Asia, Africa and Central and South America countries, Iran has high rank and good place