| Doubles | |
|---|---|
| 1987 Livingston Open | |
| Champions |  Gary Donnelly Greg Holmes |
| Runners-up | Ken Flach Robert Seguso |
| Final score | 7–6, 6–3 |
Bob Green and Wally Masur were the defending champions, but did not participate this year.
Gary Donnelly and Greg Holmes won the title, defeating Ken Flach and Robert Seguso 7–6, 6–3 in the final.
Ken Flach / Robert Seguso (final) Chip Hooper / Mike Leach (quarterfinals) Brad Pearce / 
Christo Steyn (first round) Gary Donnelly / Greg Holmes (champions)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | K Flach R Seguso | 6 | 7 | ||||||||||||||||||||||||
| S Denton D Dowlen | 4 | 6 | 1 | K Flach R Seguso | 4 | 6 | 6 | ||||||||||||||||||||
| J Lapidus R Matuszewski | 3 | 3 | M Flur S Giammalva Jr. | 6 | 3 | 2 | |||||||||||||||||||||
| M Flur S Giammalva Jr. | 6 | 6 | 1 | K Flach R Seguso | 6 | 2 | 6 | ||||||||||||||||||||
| 3 | B Pearce C Steyn | 2 | 7 | 4 | J Kriek B Testerman | 2 | 6 | 4 | |||||||||||||||||||
| J Kriek B Testerman | 6 | 6 | 6 | J Kriek B Testerman | 2 | 7 | 7 | ||||||||||||||||||||
 N Odizor  É Winogradsky | 6 | 6 | 6 | N Odizor É Winogradsky | 6 | 6 | 5 | ||||||||||||||||||||
| M Freeman G Layendecker | 4 | 7 | 3 | 1 | K Flach R Seguso | 6 | 3 | ||||||||||||||||||||
| M Lee Peter Smith | 6 | 6 | 4 | G Donnelly G Holmes | 7 | 6 | |||||||||||||||||||||
| WC |  Shu-Wah Liu K Ma | 4 | 3 | M Lee P Smith | 2 | 2 | |||||||||||||||||||||
| D Goldie D Livingston | 6 | 3 | 4 | 4 | G Donnelly G Holmes | 6 | 6 | ||||||||||||||||||||
| 4 | G Donnelly G Holmes | 2 | 6 | 6 | 4 | G Donnelly G Holmes | 6 | 6 | |||||||||||||||||||
 A Antonitsch  C Saceanu | 4 | 6 | 1 |  G Connell L Scott | 3 | 2 | |||||||||||||||||||||
| G Connell L Scott | 6 | 2 | 6 | G Connell L Scott | 6 | 6 | |||||||||||||||||||||
| J Gurfein M Kures | 7 | 2 | 2 | 2 | C Hooper M Leach | 1 | 2 | ||||||||||||||||||||
| 2 | C Hooper M Leach | 6 | 6 | 6 | |||||||||||||||||||||||
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.
Brad Gilbert and Vince Van Patten were the defending champions but only Gilbert competed that year with Kevin Curren.
Paul Annacone and Christo van Rensburg were the defending champions but lost in the semifinals to John Fitzgerald and Anders Järryd.
Bernard Mitton and Butch Walts were the defending champions but only Walts competed that year with Gary Donnelly.
Ken Flach and Robert Seguso were the defending champions but lost in the quarterfinals to Broderick Dyke and Wally Masur.
Joakim Nyström and Mats Wilander were the defending champions, but lost in the second round to Carl Limberger and Mark Woodforde.
Brian Gottfried and Tomáš Šmíd were the defending champions but did not compete that year.
Scott Davis and David Pate were the defending champions but lost in the quarterfinals to Kevin Curren and Matt Mitchell.
Peter Fleming and John McEnroe were the defending champions but they competed with different partners that year, Fleming with Gary Donnelly and McEnroe with his brother Patrick.
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.
Ken Flach and Robert Seguso were the defending champions, but Seguso did not participate this year. Flach partnered Paul Annacone, losing in the first round.
Peter Fleming and John McEnroe were the defending champions, but did not participate this year.
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.
The men's doubles tournament at the 1987 US Open was held from September 1 to September 14, 1987, on the outdoor hard courts at the USTA National Tennis Center in New York City, United States. Stefan Edberg and Anders Järryd won the title, defeating Ken Flach and Robert Seguso in the final.
Top-seeds Ken Flach and Robert Seguso won the title for the second successive year, beating second-seeded pair Pavel Složil and Kim Warwick in the final.
Grant Connell and Glenn Michibata were the defending champions, but lost in the semifinals to tournament runners-up Ken Flach and Robert Seguso.
Mark Dickson and Cássio Motta were the defending champions, but lost in the second round to Bud Cox and Danny Saltz.