Kubot może być pierwszym rywalem Del Potro, rozstawionego z nr 1, od kiedy Argentyńczyk wystąpił w finale Pucharu Davisa w Sewilli.
bilans Kubota w głównym cyklu (ATP World Tour i Wielki Szlem): 44-63
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* jedno zwycięstwo walkowerem
** wolny los w I rundzie