1990 Grand Prix de Tennis de Lyon – Singles
# 1990 Grand Prix de Tennis de Lyon – Singles

John McEnroe was the defending champion, but did not participate this year.

Marc Rosset won the title, beating Mats Wilander 6–3, 6–2 in the final.

## Seeds

* Aaron Krickstein (quarterfinals)
* Guy Forget (first round)
* Jonas Svensson (quarterfinals)
* Ronald Agénor (quarterfinals)
* Andrei Cherkasov (first round)
* Marc Rosset (champion)
* Yannick Noah (second round)
* Jean-Philippe Fleurian (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 |
| - | - | - | - | - | - | - | - | - |
| Q | Alexander Mronz | 2 | 6 | | | | | |
| | Mats Wilander | 6 | 7 | | | | | |
| | Mats Wilander | 6 | 7 | | | Mats Wilander | 3 | 2 |
| | | | | | 6 | Marc Rosset | 6 | 6 |
| 6 | Marc Rosset | 6 | 1 | 6 | 6 | Marc Rosset | 6 | 6 |
| | David Pate | 4 | 6 | 4 | | | | |

### 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 Krickstein | 7 | 6 | | | | | | | | | | | | | | | |
| Q | Y Doumbia | 6 | 4 | | 1 | A Krickstein | 6 | 6 | | | | | | | | | | |
| | C Bergström | 6 | 6 | | | C Bergström | 4 | 3 | | | | | | | | | | |
| LL | C Suk | 1 | 2 | | | | | | | 1 | A Krickstein | 4 | 6 | 4 | | | | |
| Q | L Jensen | 3 | 6 | | | | | | | Q | A Mronz | 6 | 2 | 6 | | | | |
| WC | É Winogradsky | 6 | 7 | | WC | É Winogradsky | 7 | 4 | 4 | | | | | | | | | |
| Q | A Mronz | 3 | 6 | 6 | Q | A Mronz | 6 | 6 | 6 | | | | | | | | | |
| 8 | J-P Fleurian | 6 | 3 | 0 | | | | | | | | | | | Q | A Mronz | 2 | 6 |
| 3 | J Svensson | 6 | 6 | | | | | | | | | | | | | M Wilander | 6 | 7 |
| | T Benhabiles | 2 | 3 | | 3 | J Svensson | 6 | 7 | | | | | | | | | | |
| | E Masso | 7 | 6 | | | E Masso | 4 | 6 | | | | | | | | | | |
| Q | P Gauthier | 6 | 2 | | | | | | | 3 | J Svensson | 6 | 4 | 3 | | | | |
| | D Pérez | 1 | 6 | 0 | | | | | | | M Wilander | 4 | 6 | 6 | | | | |
| | G Bloom | 6 | 0 | 6 | | G Bloom | 2 | 2 | | | | | | | | | | |
| | M Wilander | 6 | 3 | 6 | | M Wilander | 6 | 6 | | | | | | | | | | |
| 5 | A Cherkasov | 2 | 6 | 3 | | | | | | | | | | | | | | |

### 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 | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 6 | M Rosset | 7 | 6 | 7 | | | | | | | | | | | | | | | |
| | M Šrejber | 6 | 7 | 6 | 6 | M Rosset | 6 | 3 | 6 | | | | | | | | | | |
| | E Jelen | 5 | 6 | 7 | | E Jelen | 1 | 6 | 3 | | | | | | | | | | |
| | M Washington | 7 | 0 | 5 | | | | | | 6 | M Rosset | 7 | 7 | | | | | | |
| | F Santoro | 1 | 6 | 3 | | | | | | 4 | R Agénor | 6 | 5 | | | | | | |
| | R Krishnan | 6 | 4 | 6 | | R Krishnan | 6 | 6 | 5 | | | | | | | | | | |
| | B Shelton | 7 | 3 | 1 | 4 | R Agénor | 1 | 7 | 7 | | | | | | | | | | |
| 4 | R Agénor | 6 | 6 | 6 | | | | | | | | | | | 6 | M Rosset | 6 | 1 | 6 |
| 7 | Y Noah | 3 | 7 | 6 | | | | | | | | | | | | D Pate | 4 | 6 | 4 |
| | K Jones | 6 | 5 | 3 | 7 | Y Noah | 2 | 4 | | | | | | | | | | | |
| WC | G Raoux | 3 | 4 | | | G Muller | 6 | 6 | | | | | | | | | | | |
| | G Muller | 6 | 6 | | | | | | | | G Muller | 6 | 6 | 3 | | | | | |
| | T Champion | 6 | 6 | | | | | | | | D Pate | 7 | 4 | 6 | | | | | |
| WC | C Pioline | 4 | 3 | | | T Champion | 3 | 6 | 3 | | | | | | | | | | |
| | D Pate | 7 | 4 | 7 | | D Pate | 6 | 3 | 6 | | | | | | | | | | |
| 2 | G Forget | 6 | 6 | 6 | | | | | | | | | | | | | | | |
