Cincinnati Masters 1981 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| John McEnroe | d. | Chris Lewis | 6-3 6-4 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| John McEnroe | d. | Raul Ramirez | 7-6 6-1 |
| Chris Lewis | d. | Stan Smith | 6-7 7-6 6-3 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| John McEnroe | d. | Bob Lutz | 1-6 6-3 6-2 |
| Raul Ramirez | d. | Thierry Tulasne | 6-1 2-6 6-3 |
| Chris Lewis | d. | Bill Scanlon | 6-3 1-6 6-3 |
| Stan Smith | d. | Vitas Gerulaitis | 6-3 6-2 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| John McEnroe | d. | Brian Gottfried | 6-3 6-2 |
| Bob Lutz | d. | Rick Fagel | 6-1 6-4 |
| Thierry Tulasne | d. | Roscoe Tanner | 1-6 7-6 6-3 |
| Raul Ramirez | d. | Tomas Smid | 6-4 3-6 6-3 |
| Chris Lewis | d. | Christophe Roger Vasselin | 4-6 7-6 6-2 |
| Bill Scanlon | d. | Nduka Odizor | 6-3 6-2 |
| Stan Smith | d. | Tim Gullikson | 7-6 3-6 6-3 |
| Vitas Gerulaitis | d. | Jimmy Connors | 7-5 7-6 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| John McEnroe | d. | Mike Cahill | 6-3 6-0 |
| Brian Gottfried | d. | Lloyd Bourne | 6-2 6-3 |
| Bob Lutz | d. | Francisco Gonzalez | 6-3 6-2 |
| Rick Fagel | d. | Harold Solomon | 6-4 7-5 |
| Roscoe Tanner | d. | Jerome Potier | 6-1 5-7 6-4 |
| Thierry Tulasne | d. | Victor Amaya | 6-4 6-3 |
| Tomas Smid | d. | Kevin Curren | 6-3 6-4 |
| Raul Ramirez | d. | Brian Teacher | 3-6 6-3 6-2 |
| Christophe Roger Vasselin | d. | Ilie Nastase | 2-6 7-5 6-3 |
| Chris Lewis | d. | Raymond Moore | 6-3 6-2 |
| Bill Scanlon | d. | Ramesh Krishnan | 6-3 6-3 |
| Nduka Odizor | d. | Bruce Manson | 1-6 7-6 6-2 |
| Tim Gullikson | d. | Jimmy Arias | 6-3 5-7 6-4 |
| Stan Smith | d. | Marcel Freeman | 6-3 6-4 |
| Vitas Gerulaitis | d. | John Austin | 6-3 6-7 6-1 |
| Jimmy Connors | d. | Russell Simpson | 6-3 6-0 |