Mary–Ann Eisel (born November 25, 1946) is an American former tennis player.
 She was the US Open mixed doubles champion in 1968.
Pam Bristol Brady (née Stockton; born 1953) is a former American badminton player who excelled at both the national and international levels.
 Noted for her anticipation and crisp shot-making ability, she won twenty U.S. national titles between 1972 and 1985; four in singles, eleven in women's doubles, and five in mixed doubles.
 In the three national championships that were open to foreign competition during her badminton prime (1972, 1973, 1976) she reached the final in six of nine events, winning the women's doubles with Diane Hales in 1973.
 She won South Africa's open singles and women's doubles titles during a U.S. team tour of that country in 1971.
 She shared both the women's doubles and mixed doubles titles at the first Pan American Championships in 1977.
 She represented the USA in team matches including the Uber Cup (women's world team) campaigns of '71-'72, '77-'78, and '80-'81.
 Mrs. Brady was elected to the U.S. Badminton Hall of Fame in 1981.
 She is married to Danny Brady, a fine player in his own right, with whom she won national mixed doubles titles in 1981 and 1982.
David Chapman (born June 26, 1975) is a former number one ranked player in the sport of American handball.
 He is one of the best handball players ever to play the sport.
 Chapman dominated the four-wall game for 11 years, from 1993 to 2004, winning eight USHA National singles titles and seven National doubles titles in that period.
 He also won two World singles championships, and two World doubles championships during this part of his career.
 Throughout this period (1994-2004) Chapman was the number one ranked professional handball player in the world (except for part of 2001).
 Chapman retired in 2004 but returned to the game in 2008 and played until 2012.
 During this period he won two more National doubles titles, recaptured his number one ranking in 2010, and in 2011 won his ninth National four-wall singles title at the age of 35.
 As of this writing, his nine four-wall National singles titles are second only to Naty Alvarado's eleven, and his nine National four-wall doubles titles is number one of all time — a feat he achieved with three different doubles partners (Naty Alvarado Jr., Vince Munoz and Emmett Peixoto).
Elizabeth Montague Ryan (February 5, 1892 – July 6, 1979) was an American tennis player who was born in Anaheim, California but lived most of her life in the United Kingdom.
 Ryan won 26 Grand Slam titles.
 Nineteen of those titles were in women's doubles and mixed doubles at Wimbledon, an all-time record for those two events.
 Twelve of her Wimbledon titles were in women's doubles and seven were in mixed doubles.
 Ryan also won four women's doubles titles at the French Championships, as well as one women's doubles title and two mixed doubles titles at the U.S. Championships.
This is a list of the main career statistics of Australian former tennis player Evonne Goolagong.
 During her career, which lasted from 1967 to 1983, Goolagong won seven singles titles at a Grand Slam event and was a runner-up on 11 occasions.
 In addition she won five Grand Slam doubles titles, partnering Margaret Court, Peggy Michel and Helen Gourlay, as well as one mixed doubles title with Kim Warwick.
 In total she won 82 singles titles, 46 doubles titles and 4 mixed doubles titles.
 She achieved a No. 1 singles ranking for a two-week period in April–May 1976 although this was only officially recognized in 2007.
 She was a member of the Australian Federation Cup teams that won the cup in 1971, 1973 and 1974.
Pamela Howard Shriver (born July 4, 1962) is an American former professional tennis player known primarily as a doubles specialist with success also as a singles player.
 She currently is a tennis broadcaster for ESPN.
 During the 1980s and 1990s, she won 133 titles, including 21 women's singles titles, 111 women's doubles titles and one mixed doubles title.
 In Grand Slam tournaments, Shriver won 21 doubles titles and one mixed doubles title.
 She also won a women's doubles gold medal at the 1988 Olympic Games in Seoul with Zina Garrison as her partner.
The Williams sisters are two professional American tennis players: Venus Williams (b. 1980), a seven-time Grand Slam title winner (singles), and Serena Williams (b. 1981), twenty-three-time Grand Slam title winner (singles), both of whom were coached from an early age by their parents Richard Williams and Oracene Price.
 There is a noted professional rivalry between them – between the 2001 US Open and the 2017 Australian Open tournaments, they met in nine Grand Slam singles finals.
 They became the first two players, female or male, to play in 4 consecutive grand slam singles finals from the 2002 French Open to the 2003 Australian Open; Serena famously won all 4 to complete the first of two "Serena Slams".
 Between 2000 and 2016, a 17-year span, they collectively won 12 Wimbledon singles titles (Venus won 5 and Serena won 7).
 By winning the 2001 Australian Open women's doubles title, they became the 5th pair to complete the Career Doubles Grand Slam and the only pair to complete the Career Doubles Golden Slam.
 At the time, Venus and Serena were only 20 and 19 years old, respectively.
 Since then they have gone on to add another two Olympic gold medals in the 2008 Beijing Olympics and the 2012 London Olympics.
 Nearly a decade later, the duo would go on to win 4 consecutive grand slam doubles titles from 2009 Wimbledon through 2010 Roland Garros, which would catapult them to co-No.
 1 doubles players on 7 June 2010.
 Two weeks later, on 21 June 2010, Serena would hold the No. 1 singles ranking and Venus would be right behind her at No. 2 in singles.
 Their most recent grand slam doubles titles came at the 2012 Wimbledon & 2016 Wimbledon events.
 They remain very close, often watching each other's matches in support, even after one of them has been knocked out of a tournament.
Fiorella Bonicelli (born 21 December 1951) is a retired professional tennis player from Uruguay.
 During her career, she won the 1975 French Open mixed doubles title with Thomaz Koch.
 She also won the 1976 French Open women's doubles title with Gail Lovera, defeating Kathleen Harter and Helga Niessen Masthoff 6–4, 1–6, 6–3.
 At the Fed Cup, her singles record is 11–4, and doubles record 6–8.
 During her career, she reached one Grand Slam singles quarterfinal, at the 1978 French Open, where she lost to Virginia Ruzici 6–7, 6–4, 6–8.
Robert S. McCoig (1937–1998) was a Scottish badminton player who won numerous national and international titles from the late 1950s to the mid-1970s.
 Though he captured a record fifteen Scottish National singles titles, as well as several Scottish Open singles titles, his greatest international victories came in doubles.
 He was especially successful in three North American forays which yielded a pair of U.S. Open men's doubles titles (1963, 1965), a pair of Canadian Open men's doubles titles (1963, 1969), and the mixed doubles title of each nation in 1965.
 With Muriel Woodcock (née Ferguson) McCoig was runner-up in mixed doubles at the prestigious All-England Championships in 1968.
 He represented Scotland in seven consecutive Thomas Cup (men's international team) campaigns from 1957 to 1976.
Jorge Lozano (born 17 May 1963 in San Luis Potosí) is a retired professional tennis player from Mexico.
 He reached his highest doubles ranking of World No. 4 in August 1988.
 His highest singles ranking was World No. 51, achieved the following month.
 During his career, he won two mixed doubles titles at the French Open: in 1990 with Arantxa Sánchez, and in 1988 with Lori McNeil.
 He reached the round of 16 in singles at the 1988 US Open and also the semifinal in doubles that same year.
 Qualified twice for the Doubles Masters at the Royal Albert Hall in London and reached the semifinals in 1988.
 In his career, he won nine doubles titles, but no singles titles.
 He turned professional in 1986, and in his career, he won $U.S.739,424 in prize money.
 He was the first player to be beaten by Pete Sampras in the main draw of a Grand Slam tournament, at the French Open in 1989.
 In Davis Cup play, represented Mexico for 15 years, 1981–1995, won 12 doubles matches, and lost 12 as well.
 He lost 11 singles matches, and won 8, making his overall win / loss record at the Davis Cup 20–23.
 Lozano won his first title at Forest Hills in 1988, with his partner Todd Witsken, and won his last at Athens in 1993.
 He resides in Guadalajara, Mexico where he directs a tennis academy for kids and also coaches the men and women tennis team at the University Tec de Monterrey.
 He is currently the captain of the Mexican Davis Cup Team.

Question: Who was won more doubles titles,  Mary-Ann Eisel or Fiorella Bonicelli?
Answer: Fiorella Bonicelli