The 1990 Cincinnati Open, was a tennis tournament played on outdoor hard courts. It was the 91st edition of the tournament and was part of the 1990 ATP Tour. It took place in Cincinnati, Ohio, United States from August 13 through August 20, 1990. Ken Flach and Robert Seguso were the defending champions, but lost in the second round to Sven Salumaa and Byron Talbot. Darren Cahill and Mark Kratzmann won in the final, 7–6, 6–2, against Neil Broad and Gary Muller.
The 1985 Stella Artois Championships was a men's tennis tournament played on grass courts at the Queen's Club in London, United Kingdom that was part of the 1985 Nabisco Grand Prix circuit. It was the 83rd edition of the tournament and ran from 10 June until 17 June 1985. Boris Becker, who was seeded 11th, won the singles title.
Guy Forget and Yannick Noah were the defending champions but only Forget competed that year with Henri Leconte.
Ken Flach and Robert Seguso were the defending champions but lost in the quarterfinals to Broderick Dyke and Wally Masur.
Ken Flach and Robert Seguso were the defending champions but lost in the semifinals to John Fitzgerald and Anders Järryd.
Peter Fleming and John McEnroe were the defending champions, but lost in the semifinals to Swedes Stefan Edberg and Anders Järryd.
Paul Annacone and Christo van Rensburg were the defending champions, but lost in the semifinals to Swedes and top seeds Stefan Edberg and Anders Järryd.
Peter Fleming and John McEnroe successfully defended their title, defeating Pat Cash and Paul McNamee in the final, 6–2, 5–7, 6–2, 3–6, 6–3 to win the gentlemen's doubles title at the 1984 Wimbledon Championships. This was their fourth title. It earned McEnroe his third and last win of both the doubles and singles title in the same year
The men's doubles tournament at the 1984 French Open was held from 26 May until 10 June 1984 on the outdoor clay courts at the Stade Roland Garros in Paris, France. Henri Leconte and Yannick Noah won the title, defeating Pavel Složil and Tomáš Šmíd in the final.
The men's doubles tournament at the 1984 Australian Open was held from 26 November through 9 December 1984 on the outdoor grass courts at the Kooyong Stadium in Melbourne, Australia. Mark Edmondson and Sherwood Stewart won the title, defeating Joakim Nyström and Mats Wilander in the final.
The men's doubles tournament at the US Open was held from August 27 to September 8, 1985, on the outdoor hard courts at the USTA National Tennis Center in New York City, United States. Ken Flach and Robert Seguso won the title, defeating Henri Leconte and Yannick Noah in the final.
Peter Fleming and John McEnroe were the defending champions, but lost in the semifinals to Pat Cash and John Fitzgerald.
The men's doubles tournament at the 1985 French Open was held from 27 May until 9 June 1985 on the outdoor clay courts at the Stade Roland Garros in Paris, France. Mark Edmondson and Kim Warwick won the title, defeating Shlomo Glickstein and Hans Simonsson in the final.
Heinz Günthardt and Balázs Taróczy were the defending champions, but lost in the first round to Sammy Giammalva and Greg Holmes.
The men's doubles tournament at the 1986 French Open was held from 26 May until 8 June 1986 on the outdoor clay courts at the Stade Roland Garros in Paris, France. John Fitzgerald and Tomáš Šmíd won the title, defeating Stefan Edberg and Anders Järryd in the final.
Ken Flach and Robert Seguso successfully defended their title, defeating John Fitzgerald and Anders Järryd in the final, 6–4, 2–6, 6–4, 7–6(7–3) to win the gentlemen's doubles title at the 1988 Wimbledon Championships.
The men's doubles event at the 1991 French Open tennis tournament was held from 27 May until 9 June 1991 on the outdoor clay courts at the Stade Roland Garros in Paris, France. John Fitzgerald and Anders Järryd won the title, defeating Goran Ivanišević and Petr Korda in the final.
Ken Flach and Robert Seguso were the defending champions but lost in the second round to Eliot Teltscher and Christo van Rensburg. Second-seeded pair Hans Gildemeister and Andrés Gómez claimed the title by defeating John Alexander and Sherwood Stewart in the final.
Ken Flach and Robert Seguso were the defending champions, but lost in the final to Anders Järryd and Mats Wilander. The score was 4–6, 6–3, 6–2.
Ken Flach and Robert Seguso were the defending champions, but Robert Seguso chose not to participate. Flach partnered with Todd Witsken, but lost in the quarterfinals to Mark Woodforde and Todd Woodbridge.
Ken Flach 
Pat Cash 
