# 1986 Grand Prix German Open – Singles

Miloslav Mečíř was the defending champion, but lost in the final to Henri Leconte. The score was 6–2, 5–7, 6–4, 6–2. Leconte became the last French player to win the tournament until Gilles Simon won it in 2011.

## Seeds

The first eight seeds received a bye to the second round.
* Boris Becker (second round)
* Joakim Nyström (third round)
* Miloslav Mečíř (final)
* Henri Leconte (champion)
* Andrés Gómez (second round)
* Thierry Tulasne (second round)
* Emilio Sánchez (semifinals)
* Martín Jaite (third round)
* Guillermo Vilas (second round)
* Kent Carlsson (semifinals)
* Eric Jelen (first round)
* Jakob Hlasek (quarterfinals)
* Milan Šrejber (third round)
* Paolo Canè (first round)
* Horacio de la Peña (third round)
* Paul McNamee (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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final | Final | |
| | Mel Purcell | 2 | 1 | | | | | | | | | | | | | |
| 7 | Emilio Sánchez | 6 | 6 | | | | | | | | | | | | | |
| 7 | Emilio Sánchez | 6 | 6 | | 7 | Emilio Sánchez | 4 | 2 | | | | | | | | |
| | | | | | 4 | Henri Leconte | 6 | 6 | | | | | | | | |
| 4 | Henri Leconte | 6 | 0 | 7 | 4 | Henri Leconte | 6 | 6 | | | | | | | | |
| | Thomas Muster | 2 | 6 | 5 | | | | | | | | | | | | |
| | Thomas Muster | 2 | 6 | 5 | | | | | 4 | Henri Leconte | 6 | 5 | 6 | 6 | | |
| | | | | | | | | | 3 | Miloslav Mečíř | 2 | 7 | 4 | 2 | | |
| 12 | Jakob Hlasek | 0 | 2 | | | | | | | | | | | | 3 | Miloslav Mečíř | 2 | 7 | 4 | 2 |
| 3 | Miloslav Mečíř | 6 | 6 | | | | | | | | | | | | | |
| 3 | Miloslav Mečíř | 6 | 6 | | 3 | Miloslav Mečíř | 6 | 6 | | | | | | | | |
| | | | | | 10 | Kent Carlsson | 3 | 2 | | | | | | | | |
| 10 | Kent Carlsson | 6 | 6 | 6 | 10 | Kent Carlsson | 3 | 2 | | | | | | | | |
| | Henrik Sundström | 2 | 7 | 2 | | | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | B Becker | 5 | 6 | 6 | | | | | | | | |
| WC | A Stepanek | 3 | 4 | | | M Purcell | 7 | 2 | 7 | | | | | | | | |
| | M Purcell | 6 | 6 | | | | | | | | M Purcell | 6 | 6 | | | | |
| | J Brown | 6 | 3 | 3 | | | | | | 15 | H de la Peña | 3 | 3 | | | | |
| | G Forget | 3 | 6 | 6 | | G Forget | 4 | 4 | | | | | | | | | |
| | K Nováček | 6 | 4 | | 15 | H de la Peña | 6 | 6 | | | | | | | | | |
| 15 | H de la Peña | 7 | 6 | | | | | | | | | | | | M Purcell | 2 | 1 |
| 9 | G Vilas | 7 | 7 | | | | | | | | | | | 7 | E Sánchez | 6 | 6 |
| | C Motta | 5 | 6 | | 9 | G Vilas | 3 | 4 | | | | | | | | | |
| | S Casal | 6 | 6 | | | S Casal | 6 | 6 | | | | | | | | | |
| WC | P Kühnen | 1 | 2 | | | | | | | | S Casal | 2 | 1 | | | | |
| | J Svensson | 6 | 6 | | | | | | | 7 | E Sánchez | 6 | 6 | | | | |
| | M Ostoja | 1 | 4 | | | J Svensson | 4 | 2 | | | | | | | | | |
| | | | | | 7 | E Sánchez | 6 | 6 | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | H Leconte | 6 | 6 | | | | | | | | | | |
| Q | M Robertson | 6 | 1 | 6 | | A Maurer | 1 | 3 | | | | | | | | | | |
| | A Maurer | 2 | 6 | 7 | | | | | | 4 | H Leconte | 6 | 6 | | | | | |
| | E Bengoechea | 6 | 6 | | | | | | | 13 | M Šrejber | 4 | 3 | | | | | |
| SE | M Wostenholme | 2 | 3 | | | E Bengoechea | 4 | 5 | | | | | | | | | | |
| WC | H Schwaier | 2 | 4 | | 13 | M Šrejber | 6 | 7 | | | | | | | | | | |
| 13 | M Šrejber | 6 | 6 | | | | | | | | | | | 4 | H Leconte | 6 | 0 | 7 |
| 11 | E Jelen | 4 | 1 | | | | | | | | | | | | T Muster | 2 | 6 | 5 |
| | P Složil | 6 | 6 | | | P Složil | 3 | 6 | 2 | | | | | | | | | |
| | D Pérez | 6 | 0 | 4 | Q | G Pérez Roldán | 6 | 2 | 6 | | | | | | | | | |
| Q | G Pérez Roldán | 1 | 6 | 6 | | | | | | Q | G Pérez Roldán | 3 | 1 | | | | | |
| | T Muster | 7 | 6 | | | | | | | | T Muster | 6 | 6 | | | | | |
| | R Agénor | 5 | 2 | | | T Muster | 7 | 6 | | | | | | | | | | |
| | | | | | 6 | T Tulasne | 6 | 2 | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | A Gómez | 4 | 4 | | | | | | | | | |
| | J Carlsson | 4 | 3 | | | M Westphal | 6 | 6 | | | | | | | | | |
| | M Westphal | 6 | 6 | | | | | | | M Westphal | 2 | 2 | | | | | |
| WC | C Saceanu | 6 | 3 | | | | | | 12 | J Hlasek | 6 | 6 | | | | | |
| | T Šmíd | 7 | 6 | | | T Šmíd | 2 | 3 | | | | | | | | | |
| Q | I Werner | 6 | 6 | 1 | 12 | J Hlasek | 6 | 6 | | | | | | | | | |
| 12 | J Hlasek | 4 | 7 | 6 | | | | | | | | | | 12 | J Hlasek | 0 | 2 |
| 14 | P Canè | 4 | 5 | | | | | | | | | | | 3 | M Mečíř | 6 | 6 |
| | U Stenlund | 6 | 7 | | | U Stenlund | 6 | 2 | | | | | | | | | |
| Q | F Davín | 7 | 6 | | Q | F Davín | 7 | 6 | | | | | | | | | |
| | D Keretić | 5 | 1 | | | | | | Q | F Davín | 2 | 6 | 2 | | | | |
| | J Gunnarsson | 6 | 6 | | | | | | 3 | M Mečíř | 6 | 4 | 6 | | | | |
| | B Moir | 3 | 4 | | | J Gunnarsson | 1 | 1 | | | | | | | | | |
| | | | | | 3 | M Mečíř | 6 | 6 | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 8 | M Jaite | 6 | 6 | | | | | | | | | | |
| | F Luna | 6 | 3 | | | L Pimek | 2 | 3 | | | | | | | | | | |
| | L Pimek | 7 | 6 | | | | | | | 8 | M Jaite | 5 | 5 | | | | | |
| Q | J Avendaño | 2 | 2 | | | | | | | 10 | K Carlsson | 7 | 7 | | | | | |
| WC | R Osterthun | 6 | 6 | | WC | R Osterthun | 2 | 1 | | | | | | | | | | |
| Q | T Meinecke | 5 | 3 | | 10 | K Carlsson | 6 | 6 | | | | | | | | | | |
| 10 | K Carlsson | 7 | 6 | | | | | | | | | | | 10 | K Carlsson | 6 | 6 | 6 |
| 16 | P McNamee | 7 | 1 | 7 | | | | | | | | | | | H Sundström | 2 | 7 | 2 |
| SE | C Miniussi | 5 | 6 | 5 | 16 | P McNamee | 6 | 0 | 6 | | | | | | | | | |
| | H Sundström | 4 | 6 | 6 | | H Sundström | 3 | 6 | 7 | | | | | | | | | |
| Q | P Vojtíšek | 6 | 4 | 2 | | | | | | | H Sundström | 6 | 6 | | | | | |
| | M Schapers | 5 | 7 | 6 | | | | | | 2 | J Nyström | 3 | 4 | | | | | |
| | L Mattar | 7 | 5 | 7 | | L Mattar | 3 | 6 | 3 | | | | | | | | | |
| | | | | | 2 | J Nyström | 6 | 1 | 6 | | | | | | | | | |