Purpose: The correlation analysis is held between boys' tennis rankings and tournaments host in their continents. Method: The data were retrieved from the International Tennis Federation (ITF) website. Two types of data were retrieved: Their nationalities for the top 300 junior athletes, and the times of tournaments held in each continent. Each tournament was classified as Class I, II or III. Product-moment correlation analysis was used to examine the correlation between the numbers of ITF top 300 junior athletes in each continent and the times of tournaments held in each continent. Result: The correlation between the number of top 100 players and Class 1 tournaments held is 0.83. The number of top 101-200 players has higher correlation with Class2 tournaments. However, all rankings has the highest correlation with both the classified 3 tournaments (0.94~0.97), and the frequency of hosting ITF tournaments (0.96~0.99) (p<.05). Conclusion: To improve junior athlete's ITF ranking to top 300, we should host more junior level tournaments, and elevate the tournament to a higher level.