# 1990 Diet Pepsi Championships – Singles

The 1990 Diet Pepsi Championships was a tennis tournament played on indoor carpet courts at the Wembley Arena in Wembley, London in the United Kingdom. Michael Chang was the defending champion, but he lost the final to Jakob Hlasek, 7–6, 6–3.

## Seeds

* Pete Sampras (second round, withdrew)
* Goran Ivanišević (quarterfinals)
* Michael Chang (Runner up)
* Guy Forget (first round)
* Aaron Krickstein (second round)
* Horst Skoff (second round)
* Jakob Hlasek (champion)
* Scott Davis (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

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | C Bergström | 3 | 6 | 6 | | | | |
| 3 | M Chang | 6 | 3 | 7 | | | | |
| 3 | M Chang | 6 | 3 | 7 | 3 | M Chang | 6 | 3 |
| | | | | | 7 | J Hlasek | 7 | 6 |
| Q | D Nargiso | 6 | 2 | | 7 | J Hlasek | 7 | 6 |
| 7 | J Hlasek | 7 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | P Sampras | 6 | 4 | 6 | | | | | | | | | | | | | | | |
| LL | C Pioline | 2 | 6 | 3 | 1 | P Sampras | | | | | | | | | | | | | |
| LL | E Masso | 4 | 4 | | | C Bergström | w/o | | | | | | | | | | | | |
| | C Bergström | 6 | 6 | | | | | | | | C Bergström | 6 | 6 | | | | | | |
| Q | P McEnroe | 6 | 7 | | | | | | | Q | P McEnroe | 2 | 4 | | | | | | |
| | J Grabb | 2 | 5 | | Q | P McEnroe | 7 | 3 | 6 | | | | | | | | | | |
| | A Antonitsch | 3 | 6 | 4 | | S Davis | 5 | 6 | 4 | | | | | | | | | | |
| 8 | S Davis | 6 | 4 | 6 | | | | | | | | | | | | C Bergström | 3 | 6 | 6 |
| 3 | M Chang | 6 | 6 | | | | | | | | | | | | 3 | M Chang | 6 | 3 | 7 |
| | M Kratzmann | 0 | 0 | | 3 | M Chang | 6 | 6 | | | | | | | | | | | |
| WC | J Bates | 7 | 7 | | WC | J Bates | 3 | 3 | | | | | | | | | | | |
| | R Krishnan | 6 | 6 | | | | | | | 3 | M Chang | 3 | 6 | 6 | | | | | |
| | P Lundgren | 6 | 6 | 6 | | | | | | | P Lundgren | 6 | 3 | 4 | | | | | |
| | N Pereira | 7 | 3 | 4 | | P Lundgren | 7 | 6 | | | | | | | | | | | |
| Q | R Leach | 2 | 4 | | 5 | A Krickstein | 5 | 4 | | | | | | | | | | | |
| 5 | A Krickstein | 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 | H Skoff | 6 | 4 | 2 | | | | | | | | | | | | | | |
| | P Baur | 3 | 6 | 6 | | P Baur | 6 | 6 | 6 | | | | | | | | | |
| Q | D Nargiso | 6 | 6 | | Q | D Nargiso | 3 | 7 | 7 | | | | | | | | | |
| | A Rahunen | 2 | 4 | | | | | | | Q | D Nargiso | 6 | 3 | 6 | | | | |
| | D Cahill | 7 | 6 | | | | | | | | M Larsson | 3 | 6 | 3 | | | | |
| WC | P Cash | 6 | 4 | | | D Cahill | 6 | 6 | 6 | | | | | | | | | |
| | M Larsson | 6 | 7 | | | M Larsson | 7 | 3 | 7 | | | | | | | | | |
| 4 | G Forget | 2 | 6 | | | | | | | | | | | | Q | D Nargiso | 6 | 2 |
| 7 | J Hlasek | 6 | 6 | 6 | | | | | | | | | | | 7 | J Hlasek | 7 | 6 |
| | T Woodbridge | 1 | 7 | 3 | 7 | J Hlasek | 7 | 7 | | | | | | | | | | |
| | G Prpić | 4 | 4 | | | G Muller | 5 | 5 | | | | | | | | | | |
| | G Muller | 6 | 6 | | | | | | | 7 | J Hlasek | 4 | | | | | | |
| | N Kulti | 6 | 6 | | | | | | | 2 | G Ivanišević | 1 | r | | | | | |
| Q | M Woodforde | 2 | 1 | | | N Kulti | 6 | 4 | | | | | | | | | | |
| | T Champion | 4 | 2 | | 2 | G Ivanišević | 7 | 6 | | | | | | | | | | |
| 2 | G Ivanišević | 6 | 6 | | | | | | | | | | | | | | | |