# 1984 U.S. Pro Tennis Championships – Singles

José Luis Clerc was the defending champion, but lost in the final to 16-year old Aaron Krickstein. The score was 7–6, 3–6, 6–4.

## Seeds

The top eight seeds receive a bye into the second round.
* Jimmy Arias (quarterfinals)
* Andrés Gómez (semifinals)
* José Luis Clerc (final)
* Juan Aguilera (second round)
* Guillermo Vilas (quarterfinals)
* Aaron Krickstein (champion)
* Diego Pérez (second round)
* Mel Purcell (third round)
* Libor Pimek (third round)
* Mark Dickson (third round)
* Pablo Arraya (third round)
* Fernando Luna (third round)
* Jimmy Brown (second round)
* Brad Drewett (second round)
* Cássio Motta (second round)
* Roberto Argüello (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 |
| 1 | Jimmy Arias | 4 | 3 | | | | | | | | | | |
| 6 | Aaron Krickstein | 6 | 6 | | | | | | | | | | |
| 6 | Aaron Krickstein | 6 | 6 | | 6 | Aaron Krickstein | 6 | 6 | | | | | |
| | | | | | | Pavel Složil | 3 | 4 | | | | | |
| | John Alexander | 4 | 4 | | | Pavel Složil | 3 | 4 | | | | | |
| | Pavel Složil | 6 | 6 | | | | | | | | | | |
| | Pavel Složil | 6 | 6 | | | | | | 6 | Aaron Krickstein | 7 | 3 | 6 |
| | | | | | | | | | 3 | José Luis Clerc | 6 | 6 | 4 |
| | Mike Leach | 6 | 3 | | | | | | | | | | | 3 | José Luis Clerc | 6 | 6 | 4 |
| 3 | José Luis Clerc | 7 | 6 | | | | | | | | | | |
| 3 | José Luis Clerc | 7 | 6 | | 3 | José Luis Clerc | 6 | 6 | | | | | |
| | | | | | 2 | Andrés Gómez | 4 | 4 | | | | | |
| 5 | Guillermo Vilas | 7 | 4 | 4 | 2 | Andrés Gómez | 4 | 4 | | | | | |
| 2 | Andrés Gómez | 6 | 6 | 6 | | | | | | | | | |

### 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | J Arias | 6 | 6 | | | | | | | | | | |
| Q | J Lapidus | 6 | 1 | 0 | | T Moor | 2 | 3 | | | | | | | | | | |
| | T Moor | 4 | 6 | 6 | | | | | | 1 | J Arias | 6 | 5 | 6 | | | | |
| | T Allan | 6 | 6 | | | | | | | 10 | M Dickson | 4 | 7 | 2 | | | | |
| | G Michibata | 2 | 3 | | | T Allan | 3 | 2 | | | | | | | | | | |
| Q | D Rostagno | 2 | 6 | 1 | 10 | M Dickson | 6 | 6 | | | | | | | | | | |
| 10 | M Dickson | 6 | 3 | 6 | | | | | | | | | | | 1 | J Arias | 4 | 3 |
| 14 | B Drewett | 6 | 7 | | | | | | | | | | | | 6 | A Krickstein | 6 | 6 |
| | M Martínez | 1 | 6 | | 14 | B Drewett | 3 | 2 | | | | | | | | | | |
| Q | D Joubert | 3 | 2 | | | H Gildemeister | 6 | 6 | | | | | | | | | | |
| | H Gildemeister | 6 | 6 | | | | | | | | H Gildemeister | 2 | 4 | | | | | |
| | J Soares | 6 | 6 | | | | | | | 6 | A Krickstein | 6 | 6 | | | | | |
| | G Urpí | 2 | 3 | | | J Soares | 7 | 3 | 6 | | | | | | | | | |
| | | | | | 6 | A Krickstein | 6 | 6 | 7 | | | | | | | | | |

#### 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | J Aguilera | 3 | 7 | 5 | | | | | | | | |
| | B Manson | 6 | 2 | 2 | | J Alexander | 6 | 5 | 7 | | | | | | | | |
| | J Alexander | 1 | 6 | 6 | | | | | | | J Alexander | 6 | 4 | 6 | | | |
| | R Tanner | 6 | 3 | 7 | | | | | | 12 | F Luna | 3 | 6 | 2 | | | |
| Q | C Strode | 3 | 6 | 6 | | R Tanner | 4 | 6 | 2 | | | | | | | | |
| Q | J Arrese | 2 | 4 | | 12 | F Luna | 6 | 4 | 6 | | | | | | | | |
| 12 | F Luna | 6 | 6 | | | | | | | | | | | | J Alexander | 4 | 4 |
| 15 | C Motta | 6 | 6 | | | | | | | | | | | | P Slozil | 6 | 6 |
| LL | B Nealon | 2 | 3 | | 15 | C Motta | 4 | 3 | | | | | | | | | |
| | P Slozil | 6 | 6 | | | P Slozil | 6 | 6 | | | | | | | | | |
| Q | J Levine | 1 | 0 | | | | | | | | P Slozil | 2 | 6 | 7 | | | |
| WC | P McEnroe | 7 | 3 | 4 | | | | | | 8 | M Purcell | 6 | 4 | 6 | | | |
| | F González | 6 | 6 | 6 | | F González | 3 | 3 | | | | | | | | | |
| | | | | | 8 | M Purcell | 6 | 6 | | | | | | | | | |

### 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 |
| | | | | | 7 | D Pérez | 6 | 2 | | | | | | | | | |
| | M Mitchell | 6 | 3 | 2 | | M Leach | 7 | 6 | | | | | | | | | |
| | M Leach | 4 | 6 | 6 | | | | | | M Leach | 7 | 6 | 6 | | | | |
| | D Mustard | 7 | 2 | 2 | | | | | | B Willenborg | 6 | 7 | 2 | | | | |
| | B Willenborg | 5 | 6 | 6 | | B Willenborg | 6 | 6 | | | | | | | | | |
| | E Dibbs | 3 | 7 | 2 | 13 | J Brown | 1 | 2 | | | | | | | | | |
| 13 | J Brown | 6 | 5 | 6 | | | | | | | | | | | M Leach | 6 | 3 |
| 11 | P Arraya | 6 | 4 | 6 | | | | | | | | | | 3 | JL Clerc | 7 | 6 |
| | V Amritraj | 4 | 6 | 2 | 11 | P Arraya | 6 | 6 | | | | | | | | | |
| WC | H Solomon | 7 | 7 | | WC | H Solomon | 4 | 0 | | | | | | | | | |
| | R Acuña | 5 | 6 | | | | | | 11 | P Arraya | 2 | 2 | | | | | |
| | M Ostoja | 6 | 7 | | | | | | 3 | JL Clerc | 6 | 6 | | | | | |
| | M Hocevar | 4 | 5 | | | M Ostoja | 5 | 2 | | | | | | | | | |
| | | | | | 3 | JL Clerc | 7 | 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 |
| | | | | | 5 | G Vilas | 3 | 6 | 7 | | | | | | | | | |
| | R Seguso | 4 | 4 | | | P Rebolledo | 6 | 1 | 6 | | | | | | | | | |
| | P Rebolledo | 6 | 6 | | | | | | | 5 | G Vilas | 6 | 6 | | | | | |
| | C Barazzutti | 0$^r$ | | | | | | | | 9 | L Pimek | 1 | 3 | | | | | |
| | D Tarr | 5 | | | | D Tarr | 3 | 1 | | | | | | | | | | |
| | R Harmon | 4 | 3 | | 9 | L Pimek | 6 | 6 | | | | | | | | | | |
| 9 | L Pimek | 6 | 6 | | | | | | | | | | | 5 | G Vilas | 7 | 4 | 4 |
| 16 | R Argüello | 7 | 6 | | | | | | | | | | | 2 | A Gómez | 6 | 6 | 6 |
| WC | T Cain | 6 | 4 | | 16 | R Argüello | 6 | 6 | 0 | | | | | | | | | |
| | M Westphal | 1 | 6 | 6 | | M Westphal | 3 | 7 | 6 | | | | | | | | | |
| WC | R Brown | 6 | 3 | 1 | | | | | | | M Westphal | 1 | 5 | | | | | |
| Q | E Adams | 6 | 6 | | | | | | | 2 | A Gómez | 6 | 7 | | | | | |
| | M Freeman | 2 | 3 | | Q | E Adams | 0 | 2 | | | | | | | | | | |
| | | | | | 2 | A Gómez | 6 | 6 | | | | | | | | | | |