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It was the 39th edition of the event known that year as the Rakuten Japan Open Tennis Championships, and was part of the 500 Series of the 2011 ATP World Tour.
It was the 40th edition of the event known this year as the Rakuten Japan Open Tennis Championships, and part of the 500 Series of the 2012 ATP World Tour.
It was the 41st edition of the event known this year as the Rakuten Japan Open Tennis Championships, and part of the 500 Series of the 2013 ATP World Tour.