Djokovic won the 2018 Cincinnati Masters making him the first and only male player to have won all nine of the ATP Tour Masters 1000 .
Additionally , Djokovic and Nadal are the only two players to win four singles titles in a row , and Nadal is the only person to complete the feat in the same calendar year when he won Madrid , Rome , Canada , and Cincinnati in 2013.Djokovic is the first and only male player to have won all nine of the Masters 1000 tournaments , after he won 2018 Cincinnati .