The current study is trying to understand interactions between economic design of Egyptian Football league and its competitive balance level since its inception in 1948/1949 season till 2009/2010 season, the last season in which the competition was completed at the start of the study. This is done through identifying competitive balance level within seasons and time eras, then determining the extent of control and domination of some teams on the competition in the long term. The researcher

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... yed descriptive method (analytical studies). Research sample included (54) season divided into time eras, each era consisted of (9) full seasons. The results showed a trend towards an increase in competitive imbalance for Egyptian Football League Championship through first three eras, in addition to recurrence between increasing and decreasing in competitive balance level within time eras during the last three eras. This study opens the way for further economic researches on professional competitions with proposing new development trends and linking between theoretical and empirical economic studies.