# 1981 Fischer-Grand Prix – Singles

Brian Gottfried was the defending champion but lost in the final 1–6, 6–0, 6–1, 6–2 to Ivan Lendl.

## Seeds

The draw allocated unseeded players at random; as a result seven seeds received a bye into the second round.
* Ivan Lendl (champion)
* Brian Gottfried (final)
* Stan Smith (semifinals)
* Tomáš Šmíd (semifinals)
* Sandy Mayer (quarterfinals)
* Rolf Gehring (quarterfinals)
* Carlos Kirmayr (quarterfinals)
* Shlomo Glickstein (second round)
* John Austin (third round)
* Sammy Giammalva Jr. (second round)
* Stanislav Birner (third round)
* Pavel Složil (third round)
* Ulrich Pinner (first round)
* Trey Waltke (first round)
* Ángel Giménez (first round)
* Nick Saviano (third 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 | Final | Final |
| 1 | Ivan Lendl | 6 | 6 | | | | | | |
| 4 | Tomáš Šmíd | 2 | 2 | | | | | | |
| 4 | Tomáš Šmíd | 2 | 2 | 1 | Ivan Lendl | 1 | 6 | 6 | 6 |
| | | | | 2 | Brian Gottfried | 6 | 0 | 1 | 2 |
| 3 | Stan Smith | 3 | 4 | 2 | Brian Gottfried | 6 | 0 | 1 | 2 |
| 2 | Brian Gottfried | 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 | I Lendl | 6 | 6 | | | | | | | | | | |
| | E Fromm | 6 | 6 | | | E Fromm | 2 | 1 | | | | | | | | | | |
| | I Wimmer | 2 | 2 | | | | | | | 1 | I Lendl | 6 | 6 | | | | | |
| | | | | | | | | | | | R Stadler | 1 | 3 | | | | | |
| | | | | | | R Stadler | 6 | 7 | | | | | | | | | | |
| Q | K Meiler | 6 | 4 | 6 | Q | K Meiler | 4 | 6 | | | | | | | | | | |
| 14 | T Waltke | 4 | 6 | 2 | | | | | | | | | | | 1 | I Lendl | 7 | 6 |
| | | | | | | | | | | | | | | | 5 | S Mayer | 5 | 4 |
| | | | | | 10 | S Giammalva Jr. | 2 | 6 | | | | | | | | | | |
| | M Doyle | 6 | 6 | | | M Doyle | 6 | 7 | | | | | | | | | | |
| | B Pils | 4 | 1 | | | | | | | | M Doyle | 7 | 5 | 4 | | | | |
| | | | | | | | | | | 5 | S Mayer | 6 | 7 | 6 | | | | |
| | | | | | | T Wilkison | 2 | 6 | 0 | | | | | | | | | |
| | J Hřebec | 4 | 1 | | 5 | S Mayer | 6 | 2 | 6 | | | | | | | | | |
| 5 | S Mayer | 6 | 6 | | | | | | | | | | | | | | | |

#### 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 | Quarterfinals |
| | | | | | 4 | T Šmíd | 7 | 6 | | | | | | | | | | |
| | B Mitton | 7 | 6 | | | B Mitton | 6 | 3 | | | | | | | | | | |
| | K Eberhard | 6 | 4 | | | | | | | 4 | T Šmíd | 6 | 6 | | | | | |
| | | | | | | | | | | | J Smith | 1 | 4 | | | | | |
| | | | | | | M Ostoja | 2 | 6 | 3 | | | | | | | | | |
| | J Smith | 6 | 2 | 6 | | J Smith | 6 | 2 | 6 | | | | | | | | | |
| 15 | Á Giménez | 1 | 6 | 4 | | | | | | | | | | | 4 | T Šmíd | 6 | 6 |
| 13 | U Pinner | 4 | 5 | | | | | | | | | | | | | J Potier | 1 | 1 |
| Q | R Lewis | 6 | 7 | | Q | R Lewis | 6 | 4 | | | | | | | | | | |
| | | | | | Q | C Zipf | 7 | 6 | | | | | | | | | | |
| | | | | | | | | | | Q | C Zipf | 6 | 5 | 5 | | | | |
| | | | | | | | | | | | J Potier | 2 | 7 | 7 | | | | |
| | | | | | | J Potier | w/o | | | | | | | | | | | |
| | S Denton | 5 | 6 | | 8 | S Glickstein | | | | | | | | | | | | |
| 8 | S Glickstein | 7 | 7 | | | | | | | | | | | | | | | |

### Bottom half
#### Section 3

| 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 |
| | | | | 6 | R Gehring | 6 | 4 | 7 | | | | | | | | |
| | H Kary | 6 | 6 | | H Kary | 3 | 6 | 6 | | | | | | | | |
| | P Hutka | 4 | 1 | | | | | | 6 | R Gehring | 6 | 6 | | | | |
| | | | | | | | | | 11 | S Birner | 2 | 3 | | | | |
| | | | | | H-P Kandler | 1 | 3 | | | | | | | | | |
| Q | M Lacek | 1 | 2 | 11 | S Birner | 6 | 6 | | | | | | | | | |
| 11 | S Birner | 6 | 6 | | | | | | | | | | 6 | R Gehring | 3 | 3 |
| 9 | J Austin | 6 | 6 | | | | | | | | | | 3 | S Smith | 6 | 6 |
| Q | S Meister | 2 | 4 | 9 | J Austin | 6 | 2 | 7 | | | | | | | | |
| | | | | | D Siegler | 2 | 6 | 6 | | | | | | | | |
| | | | | | | | | | 9 | J Austin | 2 | 4 | | | | |
| | P Feigl | 6 | 6 | | | | | | 3 | S Smith | 6 | 6 | | | | |
| | C Mayotte | 3 | 3 | | P Feigl | 3 | 1 | | | | | | | | | |
| | | | | 3 | S Smith | 6 | 6 | | | | | | | | | |

#### Section 4

| 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 | Quarterfinals |
| 7 | C Kirmayr | 6 | 7 | | | | | | | | | | | | | | | |
| | J Lapidus | 2 | 5 | 7 | C Kirmayr | 7 | 7 | | | | | | | | | | | |
| | | | | | L Sanders | 6 | 6 | | | | | | | | | | | |
| | | | | | | | | | 7 | C Kirmayr | 2 | 6 | 6 | | | | | |
| | J Granát | 6 | 7 | | | | | | 12 | P Složil | 6 | 4 | 3 | | | | | |
| | J Soares | 2 | 5 | | J Granát | 6 | 6 | 4 | | | | | | | | | | |
| | | | | 12 | P Složil | 4 | 7 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | 7 | C Kirmayr | 2 | 6 | 4 |
| | | | | | | | | | | | | | | 2 | B Gottfried | 6 | 4 | 6 |
| | | | | 16 | N Saviano | 7 | 6 | | | | | | | | | | | |
| | A Pattison | 7 | 6 | | A Pattison | 6 | 1 | | | | | | | | | | | |
| | J Hayes | 6 | 2 | | | | | | 16 | N Saviano | 5 | 2 | | | | | | |
| | | | | | | | | | 2 | B Gottfried | 7 | 6 | | | | | | |
| | | | | | M Vines | 2 | 2 | | | | | | | | | | | |
| | B Martin | 2 | 1 | 2 | B Gottfried | 6 | 6 | | | | | | | | | | | |
| 2 | B Gottfried | 6 | 6 | | | | | | | | | | | | | | | |