# 1989 Fernleaf Classic – Singles

Jill Hetherington was the defending champion but did not compete that year.
Conchita Martínez won in the final 6–1, 6–2 against Jo-Anne Faull.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Conchita Martínez (champion)
* Belinda Cordwell (quarterfinals)
* Halle Cioffi (quarterfinals)
* n/a
* Sandra Wasserman (semifinals)
* Wiltrud Probst (first round)
* Donna Faber (second round)
* Maria Strandlund (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
| 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 | Final | Final | Final | Final |
| 1 | C Martínez | 6 | 6 | | | | | | | | | | | | | | | | | | | | |
| | C Dahlman | 3 | 2 | | 1 | C Martínez | 6 | 6 | | | | | | | | | | | | | | | |
| | L Field | 7 | 7 | | | L Field | 2 | 0 | | | | | | | | | | | | | | | |
| Q | K Kschwendt | 5 | 6 | | | | | | | 1 | C Martínez | 6 | 6 | | | | | | | | | | |
| | S Jaquet | 6 | 4 | 0 | | | | | | | E Smylie | 3 | 1 | | | | | | | | | | |
| | A Ivan | 4 | 6 | 6 | | A Ivan | 3 | 3 | | | | | | | | | | | | | | | |
| | E Smylie | 6 | 6 | | | E Smylie | 6 | 6 | | | | | | | | | | | | | | | |
| 6 | W Probst | 1 | 2 | | | | | | | | | | | | 1 | C Martínez | 6 | 2 | 6 | | | | |
| LL | A Betzner | 1 | 3 | | | | | | | | | | | | | L-A Eldredge | 3 | 6 | 1 | | | | |
| | M Jaggard | 6 | 6 | | | M Jaggard | 7 | 5 | 1 | | | | | | | | | | | | | | |
| | L-A Eldredge | 6 | 3 | 6 | | L-A Eldredge | 5 | 7 | 6 | | | | | | | | | | | | | | |
| | J Jonerup | 3 | 6 | 4 | | | | | | | L-A Eldredge | 7 | 6 | | | | | | | | | | |
| Q | P Hy | 4 | 5 | | | | | | | | M Pawlik | 5 | 2 | | | | | | | | | | |
| | M Pawlik | 6 | 7 | | | M Pawlik | 6 | 5 | 6 | | | | | | | | | | | | | | |
| Q | L Bartlett | 6 | 0 | 3 | 7 | D Faber | 4 | 7 | 4 | | | | | | | | | | | | | | |
| 7 | D Faber | 2 | 6 | 6 | | | | | | | | | | | | | | | | 1 | Conchita Martínez | 6 | 6 |
| 8 | M Strandlund | 6 | 6 | 6 | | | | | | | | | | | | | | | | | Jo-Anne Faull | 1 | 2 |
| | S Auer | 7 | 2 | 2 | 8 | M Strandlund | 2 | 0 | | | | | | | | | | | | | | | |
| | V Martinek | 1 | 2 | | | J-A Faull | 6 | 6 | | | | | | | | | | | | | | | |
| | J-A Faull | 6 | 6 | | | | | | | | J-A Faull | 6 | 6 | | | | | | | | | | |
| | C Wood | 2 | 6 | 6 | | | | | | 3 | H Cioffi | 3 | 3 | | | | | | | | | | |
| | C Porwik | 6 | 1 | 4 | | C Wood | 7 | 2 | 3 | | | | | | | | | | | | | | |
| | C Toleafoa | 3 | 5 | | 3 | H Cioffi | 5 | 6 | 6 | | | | | | | | | | | | | | |
| 3 | H Cioffi | 6 | 7 | | | | | | | | | | | | | J-A Faull | 6 | 6 | | | | | |
| 5 | S Wasserman | 6 | 6 | | | | | | | | | | | | 5 | S Wasserman | 4 | 2 | | | | | |
| | R Seeman | 2 | 1 | | 5 | S Wasserman | 7 | 6 | | | | | | | | | | | | | | | |
| | S Schilder | 6 | 6 | 4 | Q | A Grunfeld | 5 | 1 | | | | | | | | | | | | | | | |
| Q | A Grunfeld | 2 | 7 | 6 | | | | | | 5 | S Wasserman | 6 | 7 | 6 | | | | | | | | | |
| | R McQuillan | 6 | 7 | | | | | | | 2 | B Cordwell | 7 | 5 | 3 | | | | | | | | | |
| | K Keil | 2 | 5 | | | R McQuillan | 3 | 1 | | | | | | | | | | | | | | | |
| | C Cohen | 2 | 4 | | 2 | B Cordwell | 6 | 6 | | | | | | | | | | | | | | | |
| 2 | B Cordwell | 6 | 6 | | | | | | | | | | | | | | | | | | | | |