Stanley Roger Smith is an American former professional tennis player. A world No. 1 player and two-time major singles champion, Smith also paired with Bob Lutz to create one of the most successful doubles teams of all-time. In 1970, Smith won the inaugural year-end championships title. In 1972, he was the year-end world No. 1 singles player. In 1973, he won his second and last year end championship title at the Dallas WCT Finals. In addition, he won four Grand Prix Championship Series titles. In his early years he improved his tennis game through lessons from Pancho Segura, the Pasadena Tennis Patrons, and the sponsorship of the Southern California Tennis Association headed by Perry T. Jones. Smith is a past President of the International Tennis Hall of Fame and an ITHF Life Trustee. Outside tennis circles, Smith is best known as the namesake of a popular brand of tennis shoes.

Francisco Olegario Segura Cano, better known as Pancho "Segoo" Segura, was a leading tennis player of the 1940s and 1950s, both as an amateur and as a professional. He was born in Guayaquil, Ecuador, but moved to the United States in 1940. Throughout his amateur career he was listed by the USTA as a "foreign" player resident in the U.S. As a professional player, he was referred to as the "Ecuadorian champ who now lives in New York City". After acquiring U.S. citizenship in 1991 at the age of seventy, Segura was a citizen of both countries, although he never represented the U.S. in tennis competition.