Columns: Week of | Tournament | Champion | Runner-up | Semifinalists | Quarterfinalists
15 September | Volvo Championships Los Angeles, United States | John McEnroe 6–2, 6–3 | Stefan Edberg | Peter Lundgren Brad Gilbert | Derrick Rostagno Jaime Yzaga David Pate Pat Cash | 15 September | Volvo Championships Los Angeles, United States | Stefan Edberg Anders Järryd 3–6, 7–5, 7–6 | Peter Fleming John McEnroe | Peter Lundgren Brad Gilbert | Derrick Rostagno Jaime Yzaga David Pate Pat Cash | 22 September | Transamerica Open San Francisco, United States | John McEnroe 7–6, 6–3 | Jimmy Connors | Stefan Edberg Anders Järryd | Jim Grabb John Sadri David Pate Peter Lundgren | 22 September | Transamerica Open San Francisco, United States | Peter Fleming John McEnroe 6–4, 7–6 | Mike De Palmer Gary Donnelly | Stefan Edberg Anders Järryd | Jim Grabb John Sadri David Pate Peter Lundgren | 22 September | Torneo Godo Marlboro Barcelona , Spain | Kent Carlsson 6–2, 6–2, 6–0 | Andreas Maurer | Horst Skoff Tomáš Šmíd | Milan Šrejber David de Miguel-Lapiedra Guy Forget