# 1986 Singapore Women's Open – Singles

In the inaugural edition of the tournament, Gigi Fernández won the title by defeating Mercedes Paz 6–4, 2–6, 6–4 in the final.

## Seeds

* Helen Kelesi (quarterfinals)
* Mercedes Paz (final)
* Barbara Gerken (second round)
* Niege Dias (second round)
* Adriana Villagrán (second round)
* Gigi Fernández (champion)
* Isabel Cueto (first round)
* Vicki Nelson-Dunbar (first 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 | Final | Final | Final | Final | Final |
| 6 | Gigi Fernández | 6 | 6 | | | | | |
| | Patricia Hy | 4 | 4 | | | | | |
| | Patricia Hy | 4 | 4 | 6 | Gigi Fernández | 6 | 2 | 6 |
| | | | | 2 | Mercedes Paz | 4 | 6 | 4 |
| | Nicole Provis | 4 | 3 | 2 | Mercedes Paz | 4 | 6 | 4 |
| 2 | Mercedes Paz | 6 | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | H Kelesi | 6 | 7 | | | | | | | | | | | | | | |
| | B Cordwell | 1 | 6 | | 1 | H Kelesi | 6 | 6 | | | | | | | | | |
| | M Lundqvist | 6 | 6 | 6 | | M Lundqvist | 1 | 3 | | | | | | | | | |
| | L Antonoplis | 4 | 7 | 2 | | | | | 1 | H Kelesi | 2 | 6 | | | | | |
| | L Bernstein | 2 | 4 | | | | | | 6 | G Fernández | 6 | 7 | | | | | |
| Q | L O'Neill | 6 | 6 | | Q | L O'Neill | 3 | 3 | | | | | | | | | |
| | E Okagawa | 3 | 6 | 6 | 6 | G Fernández | 6 | 6 | | | | | | | | | |
| 6 | G Fernández | 6 | 2 | 7 | | | | | | | | | | 6 | G Fernández | 6 | 6 |
| 3 | B Gerken | 6 | 6 | | | | | | | | | | | | P Hy | 4 | 4 |
| | A Tobin-Dingwall | 0 | 2 | | 3 | B Gerken | 2 | 4 | | | | | | | | | |
| | AM Fernandez | 2 | 3 | | | M Lindström | 6 | 6 | | | | | | | | | |
| | M Lindström | 6 | 6 | | | | | | | M Lindström | 6 | 1 | 6 | | | | |
| | P Hy | 2 | 7 | 6 | | | | | | P Hy | 3 | 6 | 7 | | | | |
| | M Yanagi | 6 | 5 | 4 | | P Hy | 6 | 7 | | | | | | | | | |
| | S Walsh-Pete | 4 | 6 | 6 | | S Walsh-Pete | 3 | 5 | | | | | | | | | |
| 8 | V Nelson-Dunbar | 6 | 3 | 1 | | | | | | | | | | | | | |

### 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 |
| 5 | A Villagrán | 6 | 6 | | | | | | | | | | | | | | | |
| | J Richardson | 1 | 2 | | 5 | A Villagrán | 4 | 3 | | | | | | | | | | |
| | A Kijimuta | 6 | 6 | | | A Kijimuta | 6 | 6 | | | | | | | | | | |
| | L Field | 2 | 3 | | | | | | | | A Kijimuta | 6 | 3 | 6 | | | | |
| | N Provis | 6 | 6 | | | | | | | | N Provis | 3 | 6 | 7 | | | | |
| | H Dahlström | 2 | 1 | | | N Provis | 7 | 6 | | | | | | | | | | |
| | R Bryant | 2 | 1 | | 4 | N Dias | 5 | 4 | | | | | | | | | | |
| 4 | N Dias | 6 | 6 | | | | | | | | | | | | | N Provis | 4 | 3 |
| 7 | I Cueto | 6 | 3 | 6 | | | | | | | | | | | 2 | M Paz | 6 | 6 |
| | A Sánchez Vicario | 3 | 6 | 7 | | A Sánchez Vicario | 3 | 5 | | | | | | | | | | |
| | W Probst | 6 | 0 | | Q | M Bollegraf | 6 | 7 | | | | | | | | | | |
| Q | M Bollegraf | 7 | 6 | | | | | | | Q | M Bollegraf | 5 | 4 | | | | | |
| Q | S Leo | 6 | 7 | 6 | | | | | | 2 | M Paz | 7 | 6 | | | | | |
| Q | M Jaggard | 7 | 6 | 3 | Q | S Leo | 6 | 0 | 0 | | | | | | | | | |
| | B Fulco | 2 | 3 | | 2 | M Paz | 5 | 6 | 6 | | | | | | | | | |
| 2 | M Paz | 6 | 6 | | | | | | | | | | | | | | | |