The purpose of the present study is to elucidate the relationship between performance impacts of red and blue colors on uniforms of young boxers and competition results. The study universe was consisted of 650 competitions organized in the scope of 2005-2006 Sakarya City Young Men Boxing Championship by the Turkey Boxing Federation. Sampling of the study was constituted by 562 competitions which were selected randomly from the universe. In terms of data collection, video analyses of preliminary selection, semi-final and final competitions were conducted so that x2 test evaluation could be performed for the numbers of wining of sportsmen in blue and red color uniforms based on the competition results. According to the results obtained through this research; when general total result of the competitions and preliminary selection results is considered, it was found that sportsmen in blue uniform are more successful against the ones in red uniform. When semi-final and final competitions were considered, it was found that wearing blue and red color uniforms is not significantly relevant with the competition results of the sportsmen.