# 1986 Athens Open – Singles

This was the first edition of the event.
Henrik Sundström won the tournament, beating Francisco Maciel in the final, 6–0, 7–5.

## Seeds

* Diego Pérez (first round)
* Libor Pimek (second round)
* Francisco Maciel (final)
* Pablo Arraya (semifinals)
* Fernando Luna (quarterfinals)
* Bruno Orešar (quarterfinals)
* Michael Westphal (first round)
* Florin Segărceanu (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 |
| | Juan Avendaño | 0 | 1 | | | | |
| 3 | Francisco Maciel | 6 | 6 | | | | |
| 3 | Francisco Maciel | 6 | 6 | 3 | Francisco Maciel | 0 | 5 |
| | | | | | Henrik Sundström | 6 | 7 |
| 4 | Pablo Arraya | 2 | 3 | | Henrik Sundström | 6 | 7 |
| | Henrik Sundström | 6 | 6 | | | | |

### 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 | D Pérez | 3 | 0 | | | | | | | | | | | | | | |
| | J Avendaño | 6 | 6 | | | J Avendaño | 6 | 4 | 6 | | | | | | | | |
| WC | F Cancellotti | 6 | 6 | | WC | F Cancellotti | 4 | 6 | 3 | | | | | | | | |
| | JA Rodríguez | 3 | 2 | | | | | | | | J Avendaño | 6 | 6 | | | | |
| | J Carlsson | 3 | 0 | | | | | | | | C Panatta | 3 | 1 | | | | |
| | C Panatta | 6 | 6 | | | C Panatta | 7 | 4 | 7 | | | | | | | | |
| | J Arrese | 6 | 6 | | | J Arrese | 5 | 6 | 6 | | | | | | | | |
| 8 | F Segărceanu | 4 | 4 | | | | | | | | | | | | J Avendaño | 0 | 1 |
| 3 | F Maciel | 6 | 6 | | | | | | | | | | | 3 | F Maciel | 6 | 6 |
| | G Rivas | 1 | 2 | | 3 | F Maciel | 6 | 6 | | | | | | | | | |
| | C Kist | 6 | 6 | 6 | | C Kist | 2 | 4 | | | | | | | | | |
| Q | J López-Maeso | 7 | 4 | 3 | | | | | | 3 | F Maciel | 7 | 6 | | | | |
| Q | F Davín | 6 | 7 | | | | | | | 5 | F Luna | 6 | 1 | | | | |
| | E Masso | 3 | 6 | | Q | F Davín | 6 | 1 | 0 | | | | | | | | |
| | M Wostenholme | 4 | 3 | | 5 | F Luna | 2 | 6 | 6 | | | | | | | | |
| 5 | F Luna | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | B Orešar | 6 | 6 | | | | | | | | | | | | | | | |
| | A Stepanek | 2 | 1 | | 6 | B Orešar | 7 | 6 | | | | | | | | | | |
| WC | A Bavelas | 4 | 7 | 3 | | B Willenborg | 6 | 1 | | | | | | | | | | |
| | B Willenborg | 6 | 5 | 6 | | | | | | 6 | B Orešar | 4 | 3 | | | | | |
| Q | B Dadillon | 5 | 6 | 6 | | | | | | 4 | P Arraya | 6 | 6 | | | | | |
| | C di Laura | 7 | 4 | 4 | Q | B Dadillon | 6 | 2 | | | | | | | | | | |
| Q | G Pérez Roldán | 6 | 4 | 3 | 4 | P Arraya | 7 | 6 | | | | | | | | | | |
| 4 | P Arraya | 2 | 6 | 6 | | | | | | | | | | | 4 | P Arraya | 2 | 3 |
| 7 | M Westphal | 4 | 3 | | | | | | | | | | | | | H Sundström | 6 | 6 |
| WC | G Kalovelonis | 6 | 6 | | WC | G Kalovelonis | 6 | 6 | 6 | | | | | | | | | |
| | P Rebolledo | 6 | 7 | | | P Rebolledo | 1 | 7 | 7 | | | | | | | | | |
| | J Aguilera | 4 | 5 | | | | | | | | P Rebolledo | 0 | 6 | 3 | | | | |
| | H Sundström | 6 | 2 | 7 | | | | | | | H Sundström | 6 | 4 | 6 | | | | |
| | R Båthman | 3 | 6 | 5 | | H Sundström | 6 | 6 | | | | | | | | | | |
| | C Mezzadri | 3 | 1 | | 2 | L Pimek | 0 | 1 | | | | | | | | | | |
| 2 | L Pimek | 6 | 6 | | | | | | | | | | | | | | | |