Chicago 1991 ATP
Final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| John McEnroe | m. | Patrick McEnroe | 3-6 6-2 6-4 |
Semifinal
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| John McEnroe | m. | Malivai Washington | 7-6(6) 6-7(3) 6-4 |
| Patrick McEnroe | m. | Grant Connell | 4-6 6-4 6-4 |
Perempat final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| John McEnroe | m. | Alexander Mronz | W/O |
| Malivai Washington | m. | Udo Riglewski | 4-6 6-3 6-0 |
| Grant Connell | m. | Jaime Yzaga | 6-4 6-4 |
| Patrick McEnroe | m. | Richey Reneberg | 6-1 7-6(3) |
Babak 16 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| John McEnroe | m. | Ramesh Krishnan | 7-5 6-3 |
| Alexander Mronz | m. | Gary Muller | 7-6(6) 6-3 |
| Malivai Washington | m. | Petr Korda | 6-4 7-6(5) |
| Udo Riglewski | m. | Veli Paloheimo | 7-6(6) 6-3 |
| Jaime Yzaga | m. | Kevin Curren | 6-1 3-6 6-4 |
| Grant Connell | m. | Luiz Mattar | 6-1 6-7(3) 6-3 |
| Patrick McEnroe | m. | Nicolas Pereira | 6-4 7-6(3) |
| Richey Reneberg | m. | David Pate | 6-3 7-6(2) |
Babak 32 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| John McEnroe | m. | Gilad Bloom | 6-2 6-1 |
| Ramesh Krishnan | m. | Aki Rahunen | 6-1 6-4 |
| Alexander Mronz | m. | Michael Robertson | 6-2 6-1 |
| Gary Muller | m. | Jean Philippe Fleurian | 6-4 6-4 |
| Petr Korda | m. | Peter Lundgren | 7-6(5) 6-1 |
| Malivai Washington | m. | Marian Vajda | 6-1 6-1 |
| Udo Riglewski | m. | Scott Davis | 6-3 7-6(0) |
| Veli Paloheimo | m. | Marcelo Filippini | 6-3 2-6 6-2 |
| Kevin Curren | m. | Tomas Carbonell | 6-3 6-7(3) 6-2 |
| Jaime Yzaga | m. | Jimmy Connors | 6-3 6-0 |
| Grant Connell | m. | Jim Grabb | 6-1 6-4 |
| Luiz Mattar | m. | Grant Stafford | 6-3 6-3 |
| Patrick McEnroe | m. | Brad Pearce | 6-1 6-7(7) 7-6(4) |
| Nicolas Pereira | m. | Ken Flach | 6-7(6) 7-5 6-4 |
| David Pate | m. | Luis Herrera | 6-3 6-2 |
| Richey Reneberg | m. | Todd Martin | 2-6 7-6(4) 6-3 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0