The Wentworth Invitation also known as the Wentworth Open[1] and for sponsorship reasons the Wright and Ditson Open Tournament (1885–1888), was a men's tennis tournament played at the Outing Lawn Tennis Club, Hotel Wentworth,[2] New Castle, New Hampshire, United States, on grass courts and also clay courts.

[3] The first edition was played between 30 July and 1 August 1884 on grass courts and continued on this surface until 1893.

[3] From 1894 until 1907 the event was played on clay courts.

[3] The first tournament attracted notable players including existing and future major champions, and was staged until 1907.

The second tournament was revived in 1953, though it did not feature as many prominent players, which ran till 1970.