# 1986 Madrid Open – Singles

Andreas Maurer was the defending champion, but lost in the semifinals to Joakim Nyström.
Nyström won the title by defeating Kent Carlsson 6–1, 6–1 in the final.

## Seeds

* Joakim Nyström (champion)
* Anders Järryd (semifinals)
* Andreas Maurer (semifinals)
* Kent Carlsson (final)
* Lawson Duncan (second round)
* Ronald Agénor (second round)
* Marcelo Ingaramo (quarterfinals)
* Karel Nováček (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 | Semifinals | Final | Final | Final | Final |
| 1 | Joakim Nyström | 6 | 6 | | | | | |
| 3 | Andreas Maurer | 4 | 4 | | | | | |
| 3 | Andreas Maurer | 4 | 4 | | 1 | Joakim Nyström | 6 | 6 |
| | | | | | 4 | Kent Carlsson | 1 | 1 |
| 4 | Kent Carlsson | 5 | 7 | 6 | 4 | Kent Carlsson | 1 | 1 |
| 2 | Anders Järryd | 7 | 5 | 3 | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Nyström | 6 | 6 | | | | | | | | | | | | | | |
| | J Aguilera | 2 | 1 | | 1 | J Nyström | 6 | 7 | | | | | | | | | |
| WC | J Clavet | 3 | 6 | 2 | | F Luna | 0 | 6 | | | | | | | | | |
| | F Luna | 6 | 3 | 6 | | | | | | 1 | J Nyström | 6 | 7 | | | | |
| | W Popp | 6 | 6 | | | | | | | | V Pecci | 2 | 5 | | | | |
| | A El-Mehelmy | 1 | 3 | | | W Popp | 3 | 7 | 0 | | | | | | | | |
| | V Pecci | 6 | 7 | | | V Pecci | 6 | 5 | 6 | | | | | | | | |
| 8 | K Nováček | 4 | 5 | | | | | | | | | | | 1 | J Nyström | 6 | 6 |
| 3 | A Maurer | 6 | 5 | 6 | | | | | | | | | | 3 | A Maurer | 4 | 4 |
| | R Viver | 1 | 7 | 2 | 3 | A Maurer | 6 | 6 | | | | | | | | | |
| | J Avendaño | 4 | 2 | | | A Stepanek | 1 | 2 | | | | | | | | | |
| | A Stepanek | 6 | 6 | | | | | | | 3 | A Maurer | 6 | 7 | | | | |
| | L Mattar | 3 | 7 | 7 | | | | | | | L Mattar | 2 | 6 | | | | |
| | B Scanlon | 6 | 6 | 6 | | L Mattar | 6 | 6 | | | | | | | | | |
| | R Saad | 2 | 1 | | 5 | L Duncan | 4 | 2 | | | | | | | | | |
| 5 | L Duncan | 6 | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | R Agénor | 6 | 4 | 6 | | | | | | | | | | | | | | |
| WC | E Vázquez | 0 | 6 | 1 | 6 | R Agénor | 4 | 7 | 6 | | | | | | | | | |
| WC | JC Andrade | 2 | 1 | | | T Meinecke | 6 | 5 | 7 | | | | | | | | | |
| | T Meinecke | 6 | 6 | | | | | | | | T Meinecke | 2 | 2 | | | | | |
| Q | T Carbonell | 7 | 3 | 6 | | | | | | 4 | K Carlsson | 6 | 6 | | | | | |
| | C di Laura | 5 | 6 | 7 | | C di Laura | 1 | 4 | | | | | | | | | | |
| | J Lopez-Maeso | 3 | 3 | | 4 | K Carlsson | 6 | 6 | | | | | | | | | | |
| 4 | K Carlsson | 6 | 6 | | | | | | | | | | | 4 | K Carlsson | 5 | 7 | 6 |
| 7 | M Ingaramo | 7 | 4 | 6 | | | | | | | | | | 2 | A Järryd | 7 | 5 | 3 |
| Q | P Rebolledo | 5 | 6 | 4 | 7 | M Ingaramo | 6 | 6 | | | | | | | | | | |
| | D de Miguel | 6 | 7 | 5 | | N Aerts | 4 | 4 | | | | | | | | | | |
| | N Aerts | 7 | 5 | 7 | | | | | | 7 | M Ingaramo | 5 | 5 | | | | | |
| Q | J Colás | 4 | 3 | | | | | | | 2 | A Järryd | 7 | 7 | | | | | |
| | R Osterthun | 6 | 6 | | | R Osterthun | 3 | 4 | | | | | | | | | | |
| Q | J Bardou | 1 | 2 | | 2 | A Järryd | 6 | 6 | | | | | | | | | | |
| 2 | A Järryd | 6 | 6 | | | | | | | | | | | | | | | |