| Joaquín Loyo-Mayo | |
| Birth Date: | 16 August 1945 |
| Birth Place: | Veracruz, Mexico |
| Death Place: | Córdoba, Veracruz, Mexico |
| Plays: | Left-handed |
| Turnedpro: | 1969 (ILTF World Circuit from 1961) |
| Retired: | 1982 |
| Singlesrecord: | [1] |
| Singlestitles: | 21 |
| Highestsinglesranking: | No. 99 (April 5, 1976) |
| Australianopenresult: | 2R (1975) |
| Frenchopenresult: | 3R (1970) |
| Wimbledonresult: | 4R (1971) |
| Usopenresult: | 3R (1965, 1968, 1969) |
| Doublesrecord: | 36–86 |
| Highestdoublesranking: | No. 91 (March 1, 1976) |
Joaquín Loyo-Mayo (August 16, 1945 – December 27, 2014[2]) was a Mexican tennis player active from 1961 to 1982; he won 21 career singles titles.[1]
Born in Veracruz, Mexico, he played his first tournament at the Washington State Championships in the United States in 1961.[1] he won his first singles title in 1963 at the San Luis Potosi International,[1] he would go on to win that tournament a further five times which remains a tournament record.[1] In November 1963, he represented his homeland in the [3] inaugural Games of the New Emerging Forces (GANEFO) in Jakarta. Partnering M.L. de Santiago, he won a silver medal in the men's doubles.
He won the singles title at Tri-State Championships in Cincinnati in 1967, defeating Jaime Fillol in the final,[4] and was a doubles finalist in Cincinnati in 1975 and 1968.[1]
He reached the Round of 16 at Wimbledon in 1971,[1] and the third round at the French Open and Wimbledon in 1970.[1] he won his final tournament at the San Luis Potosí Open in 1974.[1] He played his final tournament in 1982 at the Mexican Satellite tournament.[1]
His other career singles highlights include winning the Tennessee Valley Invitation two times (1966, 1969),[1] the Olaj Championships (1968), the Blue and Gray Invitation (1968), the Mexican Championships four times consecutively (1968–1971),[1] the U.S. Intercollegiate Championships (1969),[5] the March of Dimes Tennis Tournament (1968), the U.S. Intercollegiate Championships (1969),[1] and the El Tapatio International (1973).[1]
He also represented Mexico in the Davis Cup, playing in 45 matches from 1964 to 1976.[6]
Loyo-Mayo's playing career was coming to an end as the ATP rankings were coming into being. He achieved a ranking of world no. 99 in the rankings on April 12, 1976.[7] (and therefore does not reflect a possible higher ranking during his peak years from 1961 to 1972.
In the late 1960s, he earned a degree in marketing at the University of Southern California. In 1989, he joined, as professional coach, Edgbaston Archery & Lawn Tennis Society in Birmingham, United Kingdom, the oldest lawn tennis club in the world.