# 1981 Seiko Hong Kong Classic – Singles

Ivan Lendl was the defending champion, but did not compete this year.
Van Winitsky won the title by defeating Mark Edmondson 6–4, 6–7$^{(7–9)}$, 6–4 in the final. The match was completed the following day due to a rain.

## Seeds

* Kim Warwick (second round, retired)
* John Sadri (quarterfinals)
* Bill Scanlon (second round)
* Chris Lewis (quarterfinals)
* Mark Edmondson (final)
* John Fitzgerald (first round)
* Pat DuPré (second round)
* Bruce Manson (quarterfinals)

## 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 | Final |
| | Van Winitsky | 7 | 6 | 6 | | | | | |
| | Marty Davis | 5 | 7 | 3 | | | | | |
| | Marty Davis | 5 | 7 | 3 | | Van Winitsky | 6 | 6$^7$ | 6 |
| | | | | | 5 | Mark Edmondson | 4 | 7$^9$ | 4 |
| | Tim Gullikson | 3 | 6 | | 5 | Mark Edmondson | 4 | 7$^9$ | 4 |
| 5 | Mark Edmondson | 6 | 7 | | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | K Warwick | 5 | 7 | 6 | | | | | | | | | | | | | |
| | C Mottram | 7 | 5 | 0 | 1 | K Warwick | 4 | 0 | | | | | | | | | |
| | V Winitsky | 6 | 7 | | | V Winitsky | 6 | 3$^r$ | | | | | | | | | |
| | P Feigl | 2 | 6 | | | | | | | V Winitsky | 6 | 6 | 6 | | | | |
| | L Bourne | 2 | 6 | 6 | | | | | | L Bourne | 3 | 7 | 3 | | | | |
| | T Moor | 6 | 3 | 4 | | L Bourne | 6 | 6 | | | | | | | | | |
| | M Cahill | 7 | 6 | | | M Cahill | 4 | 2 | | | | | | | | | |
| 6 | J Fitzgerald | 5 | 1 | | | | | | | | | | | V Winitsky | 7 | 6 | 6 |
| 3 | B Scanlon | 6 | 7 | | | | | | | | | | | M Davis | 5 | 7 | 3 |
| | T Graham | 1 | 6 | | 3 | B Scanlon | 3 | 5 | | | | | | | | | |
| | M Bauer | 4 | 3 | | | M Davis | 6 | 7 | | | | | | | | | |
| | M Davis | 6 | 6 | | | | | | | M Davis | 6 | 6 | | | | | |
| | R Frawley | 4 | 7 | 6 | | | | | 8 | B Manson | 1 | 3 | | | | | |
| | J Austin | 6 | 6 | 7 | | J Austin | 5 | 3 | | | | | | | | | |
| | S Menon | 0 | 7 | 3 | 8 | B Manson | 7 | 6 | | | | | | | | | |
| 8 | B Manson | 6 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | P DuPré | 6 | 6 | 6 | | | | | | | | | | | | | |
| | R Van't Hof | 7 | 2 | 4 | 7 | P DuPré | 3 | 5 | | | | | | | | | |
| | N Odizor | 6 | 2 | | | Ti Gullikson | 6 | 7 | | | | | | | | | |
| | Ti Gullikson | 7 | 6 | | | | | | | | Ti Gullikson | 7 | 6 | | | | |
| | J Delaney | 2 | 6 | 1 | | | | | | 4 | C Lewis | 6 | 3 | | | | |
| | V Van Patten | 6 | 3 | 6 | | V Van Patten | 1 | 6 | 1 | | | | | | | | |
| | I Dupasquier | 1 | 6 | 5 | 4 | C Lewis | 6 | 2 | 6 | | | | | | | | |
| 4 | C Lewis | 6 | 3 | 7 | | | | | | | | | | | Ti Gullikson | 3 | 6 |
| 5 | M Edmondson | 1 | 7 | 6 | | | | | | | | | | 5 | M Edmondson | 6 | 7 |
| | L Sanders | 6 | 6 | 4 | 5 | M Edmondson | 6 | 6 | | | | | | | | | |
| | B Drewett | 6 | 4 | 6 | | B Drewett | 0 | 2 | | | | | | | | | |
| | R Krishnan | 2 | 6 | 3 | | | | | | 5 | M Edmondson | 7 | 6 | | | | |
| | C Mayotte | 7 | 6 | | | | | | | 2 | J Sadri | 6 | 4 | | | | |
| | L Stefanki | 6 | 2 | | | C Mayotte | 1 | 4 | | | | | | | | | |
| | D Gitlin | 3 | 6 | 1 | 2 | J Sadri | 6 | 6 | | | | | | | | | |
| 2 | J Sadri | 6 | 3 | 6 | | | | | | | | | | | | | |