Major Walter Clopton Wingfield, patenting the game of Sphairistike in 1873..
In December 1873, Major Walter Clopton Wingfield devised a similar game for the amusement of his guests at a garden party on his estate of Nantclwyd, in Llanelidan, Wales. He based the game on the older sport of indoor tennis or real tennis.
Major Walter Wingfield borrowed the name of this Greek game, in order to name the recreation he patented on February 23, 1874.
...and the first championships @ Wimbledon coming along within four years:
year Winner Runner-up scores minutes played
1877 S.W. Gore (BRI) W.C. Marshall (BRI) 6-1, 6-2, 6-4 48