| Singles | |
|---|---|
| 1984 Transamerica Open | |
| Champion |  John McEnroe |
| Runner-up | Brad Gilbert |
| Score | 6–4, 6–4 |
| Draw | 32 (3WC/4Q) |
| Seeds | 8 |
Ivan Lendl was the defending champion, but did not compete this year due to Davis Cup obligations. [1]
John McEnroe won the title by defeating Brad Gilbert 6–4, 6–4 in the final. [2] [3]
John McEnroe (champion) Gene Mayer (first round) Eliot Teltscher (semifinals) Tim Mayotte (first round) Scott Davis (first round)
Kevin Curren (quarterfinals)
Paul McNamee (second round) Brad Gilbert (final)| Semifinals | Final | ||||||||||||
| 1 | John McEnroe | 6 | 6 | ||||||||||
| 3 | Eliot Teltscher | 3 | 1 | ||||||||||
| 1 | John McEnroe | 6 | 6 | ||||||||||
| 8 | Brad Gilbert | 4 | 4 | ||||||||||
| Terry Moor | 6 | 3 | 4 | ||||||||||
| 8 | Brad Gilbert | 4 | 6 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | J McEnroe | 6 | 6 | ||||||||||||||||||||||||
| T Wilkison | 3 | 4 | 1 | J McEnroe | 6 | 7 | |||||||||||||||||||||
| WC | D Goldie | 3 | 4 | J Sadri | 2 | 6 | |||||||||||||||||||||
| J Sadri | 6 | 6 | 1 | J McEnroe | 6 | 6 | |||||||||||||||||||||
 J Lloyd | 7 | 6 | J Lloyd | 3 | 1 | ||||||||||||||||||||||
 V Amritraj | 5 | 3 | J Lloyd | 7 | 7 | ||||||||||||||||||||||
| L Shiras | 2 | 2 | 7 | P McNamee | 6 | 5 | |||||||||||||||||||||
| 7 | P McNamee | 6 | 6 | 1 | J McEnroe | 6 | 6 | ||||||||||||||||||||
| 3 | E Teltscher | 6 | 6 | 3 | E Teltscher | 3 | 1 | ||||||||||||||||||||
| J Fitzgerald | 2 | 4 | 3 | E Teltscher | 6 | 6 | |||||||||||||||||||||
| Ti Gullikson | 2 | 3 | Q | L Duncan | 0 | 3 | |||||||||||||||||||||
| Q | L Duncan | 6 | 6 | 3 | E Teltscher | 6 | 6 | ||||||||||||||||||||
| To Gullikson | 6 | 7 | 6 | K Curren | 0 | 3 | |||||||||||||||||||||
| WC | P McEnroe | 4 | 6 | To Gullikson | 6 | 6 | 6 | ||||||||||||||||||||
| M Dickson | 4 | 4 | 6 | K Curren | 3 | 7 | 7 | ||||||||||||||||||||
| 6 | K Curren | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | S Davis | 3 | 4 | ||||||||||||||||||||||||
 T Högstedt | 6 | 6 | T Högstedt | 7 | 4 | 7 | |||||||||||||||||||||
| Q |  M Doyle | 6 | 6 | Q | M Doyle | 6 | 6 | 6 | |||||||||||||||||||
| Q | R Nixon | 3 | 3 | T Högstedt | 3 | 2 | |||||||||||||||||||||
| Q |  G Michibata | 6 | 6 | 3 | T Moor | 6 | 6 | ||||||||||||||||||||
| T Moor | 7 | 3 | 6 | T Moor | 6 | 6 | |||||||||||||||||||||
| M Bauer | 6 | 1 | 6 | M Bauer | 4 | 3 | |||||||||||||||||||||
| 4 | T Mayotte | 4 | 6 | 3 | T Moor | 6 | 3 | 4 | |||||||||||||||||||
| 8 | B Gilbert | 6 | 6 | 8 | B Gilbert | 4 | 6 | 6 | |||||||||||||||||||
| W Masur | 3 | 4 | 8 | B Gilbert | 6 | 7 | |||||||||||||||||||||
 W Fibak | 7 | 5 | 6 | R Krishnan | 0 | 6 | |||||||||||||||||||||
| R Krishnan | 6 | 7 | 7 | 8 | B Gilbert | 6 | 7 | ||||||||||||||||||||
| WC | P Rennert | 3 | 3 | B Scanlon | 0 | 6 | |||||||||||||||||||||
| B Scanlon | 6 | 6 | B Scanlon | 3 | 6 | 6 | |||||||||||||||||||||
| P Fleming | 4 | 6 | 6 | P Fleming | 6 | 3 | 4 | ||||||||||||||||||||
| 2 | G Mayer | 6 | 3 | 0 | |||||||||||||||||||||||
Jim Courier defeated Andre Agassi in the final, 3–6, 6–4, 2–6, 6–1, 6–4 to win the men's singles tennis title at the 1991 French Open.
Boris Becker defeated the defending champion Stefan Edberg in a rematch of the previous year's final, 6–0, 7–6(7–1), 6–4 to win the gentlemen's singles tennis title at the 1989 Wimbledon Championships. It was his third Wimbledon singles title.
Stefan Edberg defeated the defending champion Boris Becker in the final, 6–2, 6–2, 3–6, 3–6, 6–4 to win the gentlemen's singles tennis title at the 1990 Wimbledon Championships.
Defending champion Ivan Lendl defeated Mats Wilander in the final, 7–5, 6–2, 3–6, 7–6(7–3) to win the men's singles tennis title at the 1987 French Open.
Defending champion Ivan Lendl defeated Miloslav Mečíř in the final, 6–4, 6–2, 6–0 to win the men's singles tennis title at the 1986 US Open.
Wayne Ferreira won in the final 6–4, 6–7(3–7), 6–1, against Richey Reneberg.
Stefan Edberg defeated the defending champion Brad Gilbert in the final, 6–1, 6–1 to win the singles tennis title at the 1990 Cincinnati Masters.
Ken Flach and Robert Seguso were the defending champions but lost in the semifinals to John Fitzgerald and Anders Järryd.
Ivan Lendl defeated Boris Becker in the final, 6–2, 7–6, 6–3 to win the singles title at the 1985 Nabisco Masters.
Pete Sampras defeated Andrés Gómez in the final, 7–6(7–4), 7–5, 6–2 to win the singles tennis title at the 1990 Ebel U.S. Pro Indoor. It was his maiden singles title.
Andrei Chesnokov defeated Petr Korda in the final, 3–6, 6–4, 6–3 to win the men's singles tennis title at the 1991 Canadian Open.
Pete Sampras was the defending champion.
The men's doubles tournament at the 1989 US Open was held from August 28 to September 10, 1989, on the outdoor hard courts of the USTA National Tennis Center in New York City, United States. John McEnroe and Mark Woodforde won the title, defeating Ken Flach and Robert Seguso in the final.
John McEnroe was the defending champion and successfully defended his title, by defeating Ivan Lendl 6–4, 6–2 in the final.
Andre Agassi was the defending champion, but lost in semifinals to Brad Gilbert.
Andre Agassi was the defending champion and successfully defended his title, by defeating Petr Korda 6–3, 6–4 in the final.
Kelly Jones and Rick Leach were the defending champions, but competed this year with different partners.
Paul Annacone was the defending champion, but lost in the first round to Jaime Yzaga.
Scott Davis and Robert Van't Hof were the defending champions, but faced each other in this edition, with different partners. Davis, teaming up with David Pate, defeated Van't Hof and Andy Kohlberg in the first round. Davis and Pate were eliminated in quarterfinals to Christo Steyn and Danie Visser.
Jimmy Connors was the defending champion but could not compete due to a 3-week suspension, after being fined at the US Open during the previous week.
The Czech canceled out of this week's tournament at the Cow Palace after he was ordered by his country's tennis federation to return to Europe to practice for an upcoming Davis Cup match on clay against Sweden.