# 1981 Stockholm Open – Singles

Björn Borg was the defending champion, but did not participate this year.
Gene Mayer won the title, defeating Sandy Mayer 6–4, 6–2 in the final.

## Seeds

* Jimmy Connors (semifinals)
* Roscoe Tanner (second round, withdrew)
* Gene Mayer (champion)
* Yannick Noah (third round)
* Brian Gottfried (second round)
* Johan Kriek (second round)
* Harold Solomon (first round)
* Stan Smith (second round)
* Tomáš Šmíd (second round)
* Fritz Buehning (third round, withdrew)
* Sandy Mayer (final)
* Rolf Gehring (second round)
* Tim Mayotte (third round)
* Robert Lutz (second round)
* Kevin Curren (second round)
* Carlos Kirmayr (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 | Final | Final | Final | Final |
| 1 | Jimmy Connors | 3 | 3 | | | | |
| 11 | Sandy Mayer | 6 | 6 | | | | |
| 11 | Sandy Mayer | 6 | 6 | 11 | Sandy Mayer | 4 | 2 |
| | | | | 3 | Gene Mayer | 6 | 6 |
| 3 | Gene Mayer | 6 | 6 | 3 | Gene Mayer | 6 | 6 |
| | Hank Pfister | 3 | 2 | | | | |

### 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 Connors | 6 | 6 | | | | | | | | | | | | | | | |
| | J Borowiak | 0 | 2 | | 1 | J Connors | 6 | 6 | | | | | | | | | | |
| | J Granát | 6 | 4 | 7 | | J Granát | 2 | 1 | | | | | | | | | | |
| | E Fromm | 4 | 6 | 6 | | | | | | 1 | J Connors | 6 | 7 | 6 | | | | |
| | S Glickstein | 6 | 1 | 6 | | | | | | | S Glickstein | 7 | 5 | 1 | | | | |
| | J Soares | 3 | 6 | 3 | | S Glickstein | 7 | 6 | | | | | | | | | | |
| | F Taygan | 4 | 4 | | 9 | T Šmíd | 6 | 4 | | | | | | | | | | |
| 9 | T Šmíd | 6 | 6 | | | | | | | | | | | | 1 | J Connors | 6 | 6 |
| 14 | R Lutz | 6 | 7 | | | | | | | | | | | | | N Saviano | 3 | 4 |
| | J Simpson | 3 | 6 | | 14 | R Lutz | 3 | 4 | | | | | | | | | | |
| | B Testerman | 6 | 5 | 2 | | N Saviano | 6 | 6 | | | | | | | | | | |
| | N Saviano | 0 | 7 | 6 | | | | | | | N Saviano | 7 | 6 | | | | | |
| | G Moretton | 6 | 7 | | | | | | | | I Năstase | 5 | 2 | | | | | |
| | V Amaya | 3 | 6 | | | G Moretton | 6 | 4 | 1 | | | | | | | | | |
| | I Năstase | 6 | 6 | | | I Năstase | 1 | 6 | 6 | | | | | | | | | |
| 7 | H Solomon | 4 | 3 | | | | | | | | | | | | | | | |

#### 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 4 | Y Noah | 2 | 6 | 6 | | | | | | | | | | | | | | |
| | H Sundström | 6 | 2 | 3 | 4 | Y Noah | 6 | 4 | 6 | | | | | | | | | |
| | J Nyström | 4 | 6 | 6 | | J Nyström | 2 | 6 | 4 | | | | | | | | | |
| | J Norbäck | 6 | 3 | 2 | | | | | | 4 | Y Noah | 2 | 2 | | | | | |
| | S Meister | 4 | 1 | | | | | | | 11 | S Mayer | 6 | 6 | | | | | |
| | J Gunnarsson | 6 | 6 | | | J Gunnarsson | 6 | 3 | 3 | | | | | | | | | |
| | T Waltke | 3 | 1 | | 11 | S Mayer | 4 | 6 | 6 | | | | | | | | | |
| 11 | S Mayer | 6 | 6 | | | | | | | | | | | 11 | S Mayer | 6 | 3 | 6 |
| 16 | C Kirmayr | 4 | 6 | 7 | | | | | | | | | | | P Elter | 2 | 6 | 1 |
| | T Högstedt | 6 | 4 | 5 | 16 | C Kirmayr | 4 | 4 | | | | | | | | | | |
| | H-D Beutel | 6 | 6 | | | H-D Beutel | 6 | 6 | | | | | | | | | | |
| | C Roger-Vasselin | 2 | 3 | | | | | | | | H-D Beutel | 3 | 4 | | | | | |
| | S Svensson | 2 | 6 | | | | | | | | P Elter | 6 | 6 | | | | | |
| | P Elter | 6 | 7 | | | P Elter | 7 | 6 | | | | | | | | | | |
| | P Portes | 4 | 5 | | 6 | J Kriek | 6 | 2 | | | | | | | | | | |
| 6 | J Kriek | 6 | 7 | | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 8 | S Smith | 6 | 6 | | | | | | | | | | | | | |
| | P Rennert | 3 | 4 | | 8 | S Smith | 6 | 2 | | | | | | | | |
| | S Birner | 6 | 1 | 3 | | M Wilander | 7 | 6 | | | | | | | | |
| | M Wilander | 4 | 6 | 6 | | | | | | M Wilander | 6 | 6 | | | | |
| | T Giammalva | 6 | 6 | | | | | | 13 | T Mayotte | 4 | 2 | | | | |
| | R Meyer | 3 | 2 | | | T Giammalva | 3 | 1 | | | | | | | | |
| | C Leeds | 5 | 4 | | 13 | T Mayotte | 6 | 6 | | | | | | | | |
| 13 | T Mayotte | 7 | 6 | | | | | | | | | | | M Wilander | 2 | 3 |
| 10 | F Buehning | 6 | 6 | | | | | | | | | | 3 | G Mayer | 6 | 6 |
| | T Wilkison | 2 | 3 | | 10 | F Buehning | 7 | 6 | | | | | | | | |
| | S Simonsson | 5 | 6 | 1 | | S Giammalva Jr. | 6 | 4 | | | | | | | | |
| | S Giammalva Jr. | 7 | 1 | 6 | | | | | 10 | F Buehning | | | | | | |
| | T Tulasne | 4 | 3 | | | | | | 3 | G Mayer | w/o | | | | | |
| | A Järryd | 6 | 6 | | | A Järryd | 1 | 2 | | | | | | | | |
| | P Fleming | 4 | 1 | | 3 | G Mayer | 6 | 6 | | | | | | | | |
| 3 | G Mayer | 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 | Quarterfinals | Quarterfinals | Quarterfinals |
| 5 | B Gottfried | 6 | 6 | | | | | | | | | | | | |
| | D Siegler | 1 | 2 | 5 | B Gottfried | 3 | 6 | 2 | | | | | | | |
| | P Hjertquist | 3 | 4 | | H Pfister | 6 | 1 | 6 | | | | | | | |
| | H Pfister | 6 | 6 | | | | | | H Pfister | 5 | 7 | 6 | | | |
| | T Okker | 3 | 2 | | | | | | T Gullikson | 7 | 6 | 4 | | | |
| | T Gullikson | 6 | 6 | | T Gullikson | 4 | 6 | 6 | | | | | | | |
| | H Simonsson | 6 | 2 | 12 | R Gehring | 6 | 4 | 3 | | | | | | | |
| 12 | R Gehring | 7 | 6 | | | | | | | | | | H Pfister | 6 | 6 |
| 15 | K Curren | 6 | 6 | | | | | | | | | | M Doyle | 4 | 3 |
| | E Edwards | 3 | 1 | 15 | K Curren | 2 | 3 | | | | | | | | |
| | M Doyle | 6 | 6 | | M Doyle | 6 | 6 | | | | | | | | |
| | J Hayes | 3 | 1 | | | | | | M Doyle | 6 | 6 | | | | |
| | S Denton | 7 | 6 | | | | | | S Denton | 4 | 3 | | | | |
| | Á Giménez | 5 | 4 | | S Denton | w/o | | | | | | | | | |
| | K Eberhard | 3 | 3 | 2 | R Tanner | | | | | | | | | | |
| 2 | R Tanner | 6 | 6 | | | | | | | | | | | | |