Gary Muller Doubles finals Doubles finals

| Outcome | Date_ | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Winner | 26 July 1987 | Schenectady, USA | Outdoor/Hard | Gary Donnelly | Brad Pearce Jim Pugh | 7–6, 6–2 |
| Runner-up | 20 November 1988 | Johannesburg, South Africa | Indoor/Hard | Tim Wilkison | Kevin Curren David Pate | 6–7, 4–6 |
| Winner | 30 July 1989 | Washington, USA | Outdoor/Hard | Neil Broad | Jim Grabb Patrick McEnroe | 6–7, 7–6, 6–4 |
| Runner-up | 12 August 1990 | Cincinnati, USA | Outdoor/Hard | Neil Broad | Darren Cahill Mark Kratzmann | 6–7, 2–6 |
| Runner-up | 30 September 1990 | Basel, Switzerland | Indoor/Hard | Neil Broad | Christo van Rensburg Stefan Kruger | 6–4, 6–7, 3–6 |
| Winner | 7 October 1990 | Toulouse, France | Indoor/Hard | Neil Broad | Michael Mortensen Michiel Schapers | 7–6, 6–4 |