# 1988 Rye Brook Open – Singles

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.

## Seeds

* Michiel Schapers (first round)
* Ramesh Krishnan (final)
* Eric Jelen (first round)
* Milan Šrejber (champion)
* Horacio de la Peña (semifinals)
* Andrei Olhovskiy (second round)
* Christian Bergström (first round)
* Javier Frana (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Diego Nargiso | 3 | 2 | | | | | |
| 4 | Milan Šrejber | 6 | 6 | | | | | |
| 4 | Milan Šrejber | 6 | 6 | | 4 | Milan Šrejber | 6 | 7 |
| | | | | | 2 | Ramesh Krishnan | 2 | 6 |
| 5 | Horacio de la Peña | 7 | 3 | 4 | 2 | Ramesh Krishnan | 2 | 6 |
| 2 | Ramesh Krishnan | 5 | 6 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | M Schapers | 5 | 6 | | | | | | | | | | | | | | | |
| Q | P Sampras | 7 | 7 | | Q | P Sampras | 7 | 3 | 3 | | | | | | | | | |
| | J Bates | 1 | 6 | 7 | | J Bates | 6 | 6 | 6 | | | | | | | | | |
| Q | S Guy | 6 | 4 | 6 | | | | | | | J Bates | 3 | 6 | 3 | | | | |
| | D Nargiso | 3 | | | | | | | | | D Nargiso | 6 | 2 | 6 | | | | |
| Q | C Hooper | 1$^r$ | | | | D Nargiso | 7 | 4 | 6 | | | | | | | | | |
| | L Shiras | 3 | 6 | 5 | 8 | J Frana | 6 | 6 | 2 | | | | | | | | | |
| 8 | J Frana | 6 | 3 | 7 | | | | | | | | | | | | D Nargiso | 3 | 2 |
| 4 | M Šrejber | 7 | 6 | | | | | | | | | | | | 4 | M Šrejber | 6 | 6 |
| | G Muller | 6 | 3 | | 4 | M Šrejber | 6 | 6 | | | | | | | | | | |
| | L Pimek | 7 | 7 | | | L Pimek | 4 | 1 | | | | | | | | | | |
| | T Svantesson | 5 | 6 | | | | | | | 4 | M Šrejber | 6 | 6 | | | | | |
| | M Davis | 4 | 6 | | | | | | | | T Wilkison | 2 | 2 | | | | | |
| | T Wilkison | 6 | 7 | | | T Wilkison | 6 | 6 | | | | | | | | | | |
| WC | J Ross | 6 | 4 | | 6/WC | A Olhovskiy | 1 | 0 | | | | | | | | | | |
| 6/WC | A Olhovskiy | 7 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | H de la Peña | 7 | 7 | | | | | | | | | | | | | | | | |
| Q | S Matsuoka | 6 | 6 | | 5 | H de la Peña | 6 | 5 | 6 | | | | | | | | | | |
| | E Masso | 6 | 7 | | | E Masso | 1 | 7 | 2 | | | | | | | | | | |
| | T Carbonell | 3 | 5 | | | | | | | 5 | H de la Peña | 6 | 5 | 6 | | | | | |
| | G Bloom | 7 | 6 | 4 | | | | | | | S Youl | 3 | 7 | 1 | | | | | |
| | J Sánchez | 6 | 7 | 6 | | J Sánchez | 3 | 3 | | | | | | | | | | | |
| | S Youl | 6 | 4 | 6 | | S Youl | 6 | 6 | | | | | | | | | | | |
| 3 | E Jelen | 2 | 6 | 0 | | | | | | | | | | | 5 | H de la Peña | 7 | 3 | 4 |
| 7 | C Bergström | 6 | 3 | 3 | | | | | | | | | | | 2 | R Krishnan | 5 | 6 | 6 |
| | M Kures | 2 | 6 | 6 | | M Kures | 4 | 6 | | | | | | | | | | | |
| | N Kroon | 4 | 6 | | | J Stoltenberg | 6 | 7 | | | | | | | | | | | |
| | J Stoltenberg | 6 | 7 | | | | | | | | J Stoltenberg | 1 | 6 | | | | | | |
| WC | T Ho | 6 | 3 | 6 | | | | | | 2 | R Krishnan | 6 | 7 | | | | | | |
| | M Anger | 4 | 6 | 4 | WC | T Ho | 2 | 1 | | | | | | | | | | | |
| | A Castle | 3 | 4 | | 2 | R Krishnan | 6 | 6 | | | | | | | | | | | |
| 2 | R Krishnan | 6 | 6 | | | | | | | | | | | | | | | | |