ATP 250 · 1991-08-19 · draw of 32
Long Island 1991
HardFinal
| 🇺🇸 Ivan Lendl | d. | 🇸🇪 Stefan Edberg | 6-3 6-2 | H2H |
Semifinals
| 🇺🇸 Ivan Lendl | d. | 🇺🇸 John McEnroe | 6-3 7-5 | H2H |
| 🇸🇪 Stefan Edberg | d. | 🇫🇷 Olivier Delaitre | 6-1 7-6(4) | H2H |
Quarterfinals
| 🇺🇸 Ivan Lendl | d. | 🇮🇹 Omar Camporese | 7-6(5) 6-3 | H2H |
| 🇺🇸 John McEnroe | d. | 🇧🇷 Luiz Mattar | 6-3 6-1 | H2H |
| 🇫🇷 Olivier Delaitre | d. | 🇫🇷 Thierry Champion | 6-4 6-4 | H2H |
| 🇸🇪 Stefan Edberg | d. | 🇺🇸 Jimmy Connors | 6-3 4-6 6-4 | H2H |
Round of 16
| 🇺🇸 Ivan Lendl | d. | 🇩🇪 Eric Jelen | 6-2 6-0 | H2H |
| 🇮🇹 Omar Camporese | d. | 🇺🇸 Patrick McEnroe | 6-3 3-6 6-3 | H2H |
| 🇺🇸 John McEnroe | d. | 🇦🇷 Patricio Arnold | 6-1 6-3 | H2H |
| 🇧🇷 Luiz Mattar | d. | 🇫🇷 Fabrice Santoro | 6-0 6-4 | H2H |
| 🇫🇷 Thierry Champion | d. | 🇫🇷 Jean-Philippe Fleurian | 5-7 6-4 7-5 | H2H |
| 🇫🇷 Olivier Delaitre | d. | 🇸🇪 Magnus Larsson | 6-0 2-6 6-1 | H2H |
| 🇺🇸 Jimmy Connors | d. | 🇸🇪 Nicklas Kulti | 1-6 6-4 6-0 | H2H |
| 🇸🇪 Stefan Edberg | d. | 🇸🇪 Peter Lundgren | 6-3 6-3 | H2H |
Round of 32
| 🇺🇸 Ivan Lendl | d. | 🇩🇪 Carl-Uwe Steeb | 6-4 3-6 6-3 | H2H |
| 🇩🇪 Eric Jelen | d. | 🇮🇹 Diego Nargiso | 5-7 7-6(7) 6-0 | H2H |
| 🇺🇸 Patrick McEnroe | d. | 🇳🇱 Jan Siemerink | 4-6 6-4 6-3 | H2H |
| 🇮🇹 Omar Camporese | d. | 🇧🇷 Jaime Oncins | 6-2 6-2 | H2H |
| 🇺🇸 John McEnroe | d. | 🇮🇱 Gilad Bloom | 6-4 4-6 6-1 | H2H |
| 🇦🇷 Patricio Arnold | d. | 🇮🇱 Amos Mansdorf | 7-6(5) 6-4 | H2H |
| 🇧🇷 Luiz Mattar | d. | 🇸🇰 Marian Vajda | 7-5 6-2 | H2H |
| 🇫🇷 Fabrice Santoro | d. | 🇸🇪 Jonas Svensson | 7-6(11) 7-5 | H2H |
| 🇫🇷 Thierry Champion | d. | 🇭🇷 Goran Ivanisevic | 6-2 6-1 | H2H |
| 🇫🇷 Jean-Philippe Fleurian | d. | 🇨🇭 Marc Rosset | 6-1 6-2 | H2H |
| 🇫🇷 Olivier Delaitre | d. | Ronald Agenor | 1-6 7-6(3) 6-2 | H2H |
| 🇸🇪 Magnus Larsson | d. | 🇺🇸 David Wheaton | 6-1 6-7(2) 7-6(5) | H2H |
| 🇸🇪 Nicklas Kulti | d. | 🇦🇷 Alberto Mancini | 7-6(1) 6-2 | H2H |
| 🇺🇸 Jimmy Connors | d. | 🇺🇸 Todd Martin | 6-3 6-4 | H2H |
| 🇸🇪 Peter Lundgren | d. | 🇫🇷 Rodolphe Gilbert | 2-6 6-1 6-1 | H2H |
| 🇸🇪 Stefan Edberg | d. | 🇺🇸 Chris Garner | 6-1 6-1 | H2H |