# 1986 Goldstar Cologne – Singles

Peter Lundgren was the defending champion, but lost in the second round to Karel Nováček.
Jonas Svensson won the title by defeating Stefan Eriksson 6–7, 6–2, 6–2 in the final.

## Seeds

* Anders Järryd (semifinals)
* Slobodan Živojinović (second round)
* Peter Lundgren (second round)
* Milan Šrejber (first round)
* Broderick Dyke (first round)
* Jan Gunnarsson (second round)
* Libor Pimek (quarterfinals)
* Michiel Schapers (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 |
| 1 | Anders Järryd | 5 | 1 | | | | |
| | Stefan Eriksson | 7 | 6 | | | | |
| | Stefan Eriksson | 7 | 6 | Stefan Eriksson | 7 | 2 | 2 |
| | | | | Jonas Svensson | 6 | 6 | 6 |
| | Karel Nováček | 3 | 6 | Jonas Svensson | 6 | 6 | 6 |
| | Jonas Svensson | 6 | 7 | | | | |

### 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 | A Järryd | 2 | 6 | 6 | | | | | | | | | | | | | | |
| Q | H Rittersbacher | 6 | 4 | 4 | 1 | A Järryd | 2 | 7 | 6 | | | | | | | | | |
| | F González | 6 | 3 | | | B Green | 6 | 6 | 2 | | | | | | | | | |
| | B Green | 7 | 6 | | | | | | | 1 | A Järryd | 6 | 3 | 6 | | | | |
| | W Popp | 3 | 2 | | | | | | | Q | G Donnelly | 2 | 6 | 3 | | | | |
| Q | G Donnelly | 6 | 6 | | Q | G Donnelly | 6 | 6 | | | | | | | | | | |
| | M Edmondson | 6 | 6 | | | M Edmondson | 1 | 2 | | | | | | | | | | |
| 8 | M Schapers | 4 | 4 | | | | | | | | | | | | 1 | A Järryd | 5 | 1 |
| 4/WC | M Šrejber | 4 | 6 | | | | | | | | | | | | | S Eriksson | 7 | 6 |
| | W Masur | 6 | 7 | | | W Masur | 4 | 6 | 3 | | | | | | | | | |
| Q | M Ostoja | 3 | 4 | | | S Eriksson | 6 | 1 | 6 | | | | | | | | | |
| | S Eriksson | 6 | 6 | | | | | | | | S Eriksson | 3 | 6 | 6 | | | | |
| Q | P Carter | 3 | 4 | | | | | | | | C Hooper | 6 | 0 | 4 | | | | |
| | C Hooper | 6 | 6 | | | C Hooper | 6 | 1 | 6 | | | | | | | | | |
| | S Perkiss | 6 | 6 | | | S Perkiss | 4 | 6 | 4 | | | | | | | | | |
| 5 | B Dyke | 1 | 4 | | | | | | | | | | | | | | | |

### 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 |
| 6 | J Gunnarsson | 6 | 6 | | | | | | | | | | | | | | |
| | F Segărceanu | 3 | 4 | | 6 | J Gunnarsson | 2 | 3 | | | | | | | | | |
| | K Evernden | 5 | 5 | | | A Mansdorf | 6 | 6 | | | | | | | | | |
| | A Mansdorf | 7 | 7 | | | | | | | | A Mansdorf | 6 | 6 | 4 | | | |
| | S Glickstein | 3 | 3 | | | | | | | | K Nováček | 7 | 2 | 6 | | | |
| | K Nováček | 6 | 6 | | | K Nováček | 6 | 6 | | | | | | | | | |
| | B Drewett | 4 | 2 | | 3 | P Lundgren | 4 | 1 | | | | | | | | | |
| 3 | P Lundgren | 6 | 6 | | | | | | | | | | | | K Nováček | 3 | 6 |
| 7 | L Pimek | 3 | 6 | 6 | | | | | | | | | | | J Svensson | 6 | 7 |
| | R Simpson | 6 | 4 | 4 | 7 | L Pimek | 7 | 5 | 6 | | | | | | | | |
| | N Aerts | 5 | 5 | | WC | U Riglewski | 6 | 7 | 4 | | | | | | | | |
| WC | U Riglewski | 7 | 7 | | | | | | | 7 | L Pimek | 3 | 4 | | | | |
| | J Svensson | 6 | 6 | | | | | | | | J Svensson | 6 | 6 | | | | |
| WC | E Jelen | 3 | 2 | | | J Svensson | 6 | 6 | | | | | | | | | |
| | T Muster | 3 | 2 | | 2 | S Živojinović | 2 | 3 | | | | | | | | | |
| 2 | S Živojinović | 6 | 6 | | | | | | | | | | | | | | |