 He adopted the rackets-based system of scoring where games consisted of 15 points (called 'aces').None of these quirks survived the Marylebone Cricket Club's 1875 "Rules of Lawn Tennis" that have been official, with periodic slight modifications, ever since then.Those rules were adopted by the All England Lawn Tennis and Croquet Club for the first Lawn Tennis Championship, at Wimbledon in 1877 (the men who devised those rules were members of both clubs).