Tour · 1989-03-20 · draw of 128
Key Biscayne 1989
HardFinal
| 🇺🇸 Ivan Lendl | d. | 🇦🇹 Thomas Muster | W/O | H2H |
Semifinals
| 🇦🇹 Thomas Muster | d. | 🇫🇷 Yannick Noah | 5-7 3-6 6-3 6-3 6-2 | H2H |
| 🇺🇸 Ivan Lendl | d. | 🇺🇸 Kevin Curren | 6-2 6-2 6-3 | H2H |
Quarterfinals
| 🇫🇷 Yannick Noah | d. | 🇩🇪 Carl-Uwe Steeb | 6-4 6-1 6-4 | H2H |
| 🇺🇸 Kevin Curren | d. | 🇪🇸 Emilio Sanchez | 6-3 6-1 6-4 | H2H |
| 🇦🇹 Thomas Muster | d. | 🇺🇸 Jim Grabb | 7-5 7-6 1-6 6-0 | H2H |
| 🇺🇸 Ivan Lendl | d. | 🇺🇸 Aaron Krickstein | 6-2 6-2 6-2 | H2H |
Round of 16
| 🇺🇸 Jim Grabb | d. | 🇦🇷 Alberto Mancini | 6-7 6-4 7-6 6-7 6-4 | H2H |
| 🇩🇪 Carl-Uwe Steeb | d. | 🇸🇪 Mikael Pernfors | 6-7 6-0 6-1 6-4 | H2H |
| 🇪🇸 Emilio Sanchez | d. | 🇳🇱 Tom Nijssen | 6-3 7-5 6-2 | H2H |
| 🇺🇸 Aaron Krickstein | d. | 🇵🇪 Jaime Yzaga | 3-6 7-6 6-3 6-3 | H2H |
| 🇦🇹 Thomas Muster | d. | 🇦🇷 Eduardo Bengoechea | 6-1 6-1 6-1 | H2H |
| 🇫🇷 Yannick Noah | d. | 🇨🇭 Jakob Hlasek | 6-4 3-6 6-4 2-6 7-5 | H2H |
| 🇺🇸 Kevin Curren | d. | 🇺🇸 Jimmy Connors | 4-6 4-6 6-3 6-4 6-2 | H2H |
| 🇺🇸 Ivan Lendl | d. | 🇪🇨 Andres Gomez | 6-4 6-2 6-4 | H2H |
Round of 32
| 🇵🇪 Jaime Yzaga | d. | 🇦🇷 Horacio de la Pena | 6-4 4-6 6-4 7-6 | H2H |
| 🇦🇷 Eduardo Bengoechea | d. | 🇮🇳 Ramesh Krishnan | 6-4 6-4 6-3 | H2H |
| 🇩🇪 Carl-Uwe Steeb | d. | 🇺🇸 Jim Courier | 6-4 4-6 7-5 4-6 6-4 | H2H |
| 🇳🇱 Tom Nijssen | d. | 🇿🇦 Christo Van Rensburg | 3-6 6-2 7-5 6-7 6-4 | H2H |
| 🇺🇸 Jim Grabb | d. | 🇦🇺 Darren Cahill | 6-4 0-6 7-6 6-1 | H2H |
| 🇪🇨 Andres Gomez | d. | 🇺🇸 Jonathan Canter | 7-6 7-6 6-4 | H2H |
| 🇸🇪 Mikael Pernfors | d. | 🇲🇽 Leonardo Lavalle | 1-6 6-2 6-1 6-4 | H2H |
| 🇺🇸 Kevin Curren | d. | 🇺🇸 Scott Davis | 6-3 3-6 4-6 7-6 6-4 | H2H |
| 🇫🇷 Yannick Noah | d. | 🇷🇺 Alexander Volkov | 5-7 6-7 7-5 6-3 6-4 | H2H |
| 🇪🇸 Emilio Sanchez | d. | 🇸🇪 Christian Bergstrom | 4-6 7-5 6-3 6-3 | H2H |
| 🇺🇸 Aaron Krickstein | d. | 🇩🇪 Alexander Mronz | 4-6 6-1 6-2 6-7 7-6 | H2H |
| 🇦🇹 Thomas Muster | d. | 🇨🇦 Andrew Sznajder | 6-1 3-6 6-3 7-6 | H2H |
| 🇨🇭 Jakob Hlasek | d. | 🇦🇺 Mark Kratzmann | 6-4 6-0 6-4 | H2H |
| 🇺🇸 Jimmy Connors | d. | 🇦🇹 Horst Skoff | 6-2 7-6 6-1 | H2H |
| 🇦🇷 Alberto Mancini | d. | 🇸🇪 Mats Wilander | 3-6 6-3 6-4 6-3 | H2H |
| 🇺🇸 Ivan Lendl | d. | 🇮🇹 Paolo Cane | 7-5 6-0 6-4 | H2H |