| Singles | |
|---|---|
| 1988 Rye Brook Open | |
| Champion |  |
| Runner-up |  |
| Final score | 6–2, 7–6 |
| Draw | 32 |
| Seeds | 8 |
Peter Lundgren was the defending champion, but did not participate this year.
Milan Šrejber won the title, defeating Ramesh Krishnan 6–2, 7–6 in the final.
| Semifinals | Final | ||||||||||||
 | 3 | 2 | |||||||||||
| 4 | | 6 | 6 | ||||||||||
| 4 | | 6 | 7 | ||||||||||
| 2 | | 2 | 6 | ||||||||||
| 5 | | 7 | 3 | 4 | |||||||||
| 2 | | 5 | 6 | 6 | |||||||||
| First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | | 5 | 6 | ||||||||||||||||||||||||
| Q |  | 7 | 7 | Q | | 7 | 3 | 3 | |||||||||||||||||||
 | 1 | 6 | 7 | | 6 | 6 | 6 | ||||||||||||||||||||
| Q |  | 6 | 4 | 6 | | 3 | 6 | 3 | |||||||||||||||||||
| | 3 | | 6 | 2 | 6 | ||||||||||||||||||||||
| Q | | 1r | | 7 | 4 | 6 | |||||||||||||||||||||
| | 3 | 6 | 5 | 8 | | 6 | 6 | 2 | |||||||||||||||||||
| 8 | | 6 | 3 | 7 | | 3 | 2 | ||||||||||||||||||||
| 4 | | 7 | 6 | 4 | | 6 | 6 | ||||||||||||||||||||
 | 6 | 3 | 4 | | 6 | 6 | |||||||||||||||||||||
 | 7 | 7 | | 4 | 1 | ||||||||||||||||||||||
| | 5 | 6 | 4 | | 6 | 6 | |||||||||||||||||||||
| | 4 | 6 | | 2 | 2 | ||||||||||||||||||||||
| | 6 | 7 | | 6 | 6 | ||||||||||||||||||||||
| WC | | 6 | 4 | 6/WC | | 1 | 0 | ||||||||||||||||||||
| 6/WC | | 7 | 6 | ||||||||||||||||||||||||
| First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | | 7 | 7 | ||||||||||||||||||||||||
| Q |  | 6 | 6 | 5 | | 6 | 5 | 6 | |||||||||||||||||||
| | 6 | 7 | | 1 | 7 | 2 | |||||||||||||||||||||
 | 3 | 5 | 5 | | 6 | 5 | 6 | ||||||||||||||||||||
 | 7 | 6 | 4 |  | 3 | 7 | 1 | ||||||||||||||||||||
| | 6 | 7 | 6 | | 3 | 3 | |||||||||||||||||||||
| | 6 | 4 | 6 | | 6 | 6 | |||||||||||||||||||||
| 3 | | 2 | 6 | 0 | 5 | | 7 | 3 | 4 | ||||||||||||||||||
| 7 | | 6 | 3 | 3 | 2 | | 5 | 6 | 6 | ||||||||||||||||||
| | 2 | 6 | 6 | | 4 | 6 | |||||||||||||||||||||
| | 4 | 6 | | 6 | 7 | ||||||||||||||||||||||
| | 6 | 7 | | 1 | 6 | ||||||||||||||||||||||
| WC | | 6 | 3 | 6 | 2 | | 6 | 7 | |||||||||||||||||||
| | 4 | 6 | 4 | WC | | 2 | 1 | ||||||||||||||||||||
| | 3 | 4 | 2 | | 6 | 6 | |||||||||||||||||||||
| 2 | | 6 | 6 | ||||||||||||||||||||||||
Second-seeded Mats Wilander successfully defended his title, defeating Kevin Curren 6–7(5–7), 6–4, 7–6(7–3), 6–2 in the final to win the Men's Singles tennis title at the 1984 Australian Open.
Fourth-seeded Stefan Edberg successfully defended his title, defeating home player Pat Cash in the final, 6–3, 6–4, 3–6, 5–7, 6–3 to win the Men's Singles tennis title at the 1987 Australian Open.
Miloslav Mečíř defeated Michiel Schapers 6–2, 6–3, 6–4 to win the 1987 Heineken Open singles competition. Mark Woodforde was the defending champion.
Ramesh Krishnan defeated Amos Mansdorf 6–4, 6–0 to win the 1989 Heineken Open singles competition. Mansdorf was the defending champion.
Emilio Sánchez was the defending champion, but lost in the first round this year.
Ivan Lendl was the defending champion but lost in the final 7–5, 6–2, 7–5 to Miloslav Mečíř.
The 1988 Rye Brook Open was a men's tennis tournament played on outdoor hard courts that was part of the 1988 Nabisco Grand Prix. It was played at Rye Brook, New York in the United States from August 22 through August 29, 1988. Fourth-seeded Milan Šrejber won the singles title.
Jan Gunnarsson was the defending champion but lost in the semifinals to Karel Nováček.
Ramesh Krishnan was the defending champion but lost in the first round to Patrick Baur.
Jimmy Connors was the defending champion but did not compete that year.
Jorge Lozano and Todd Witsken were the defending champions but lost in the first round to Rikard Bergh and Nicolás Pereira.
Simon Youl was the defending champion, but did not participate this year.
Robert Van't Hof was the defending champion, but did not participate this year.
Kevin Curren was the defending champion, but did not participate this year.
Ivan Lendl was the defending champion, but did not participate this year.
Martin Davis was the defending champion, but lost in the third round this year.
Kelly Evernden was the defending champion, but lost in the third round this year.
Mats Wilander was the defending champion, but did not participate this year.
The Men's Doubles tournament at the 1989 French Open was held from 29 May until 11 June 1989 on the outdoor clay courts at the Stade Roland Garros in Paris, France. Jim Grabb and Patrick McEnroe won the title, defeating Mansour Bahrami and Éric Winogradsky in the final.
Ramesh Krishnan defeated Dave Siegler in the final, 6–0, 6–2 to win the Boys' Singles tennis title at the 1979 Wimbledon Championships.