| Result | W/L | Date | Tournament | Surface | Partner | Opponents | Score |
|---|
| Loss | 1. | 1972 | Australian Open, Melbourne | Grass | Geoff Masters | Owen Davidson
Ken Rosewall | 6–3, 6–7, 3–6 |
| Win | 1. | 1972 | Seattle, U.S. | Hard | Geoff Masters | Jean-Baptiste Chanfreau
Wanaro N'Godrella | 4–6, 7–6, 6–4 |
| Win | 2. | 1972 | Brisbane, Australia | Hard | Geoff Masters | Georges Goven
Wanaro N'Godrella | 6–2, 6–7, 6–2, 7–6 |
| Loss | 2. | 1973 | Rome, Italy | Clay | Geoff Masters | John Newcombe
Tom Okker | 2–6, 3–6, 4–6 |
| Win | 3. | 1973 | Washington, D.C., U.S. | Clay | Geoff Masters | Dick Crealy
Andrew Pattison | 2–6, 6–1, 6–4 |
| Loss | 3. | 1973 | Tehran, Iran | Clay | Geoff Masters | Rod Laver
John Newcombe | 6–7, 2–6 |
| Win | 4. | 1974 | Australian Open, Melbourne | Grass | Geoff Masters | Syd Ball
Bob Giltinan | 6–7, 6–3, 6–4 |
| Loss | 4. | 1974 | Hempstead WCT, New York | Hard | Geoff Masters | Jeff Borowiak
Dick Crealy | 7–6, 4–6, 4–6 |
| Loss | 5. | 1974 | St. Louis, U.S. | Clay | Geoff Masters | Ismail El Shafei
Brian Fairlie | 6–7, 7–6, 6–7 |
| Win | 5. | 1974 | Los Angeles, U.S. | Hard | Geoff Masters | Brian Gottfried
Raúl Ramírez | 6–3, 6–2 |
| Win | 6. | 1974 | Sydney Indoor, Australia | Hard (i) | Geoff Masters | John Newcombe
Tony Roche | 6–4, 6–4 |
| Win | 7. | 1974 | Manila, Philippines | Hard | Syd Ball | Mike Estep
Marcello Lara | 6–3, 7–6, 9–7 |
| Win | 8. | 1975 | São Paulo WCT, Brazil | Carpet | Geoff Masters | Brian Gottfried
Raúl Ramírez | 6–7, 7–6, 7–6 |
| Win | 9. | 1975 | Caracas WCT, Venezuela | Hard | Geoff Masters | Brian Gottfried
Raúl Ramírez | 7–5, 4–6, 6–2 |
| Loss | 6. | 1975 | St. Louis, U.S. | Clay | Geoff Masters | Colin Dibley
Ray Ruffels | 4–6, 4–6 |
| Win | 10. | 1975 | Melbourne Indoor, Australia | Grass | Geoff Masters | Brian Gottfried
Raúl Ramírez | 6–4, 6–0 |
| Loss | 7. | 1975 | Sydney Indoor, Australia | Hard (i) | Geoff Masters | Brian Gottfried
Raúl Ramírez | 4–6, 2–6 |
| Loss | 8. | 1975 | Perth, Australia | Hard | Geoff Masters | Brian Gottfried
Raúl Ramírez | 6–2, 4–6, 4–6, 0–6 |
| Win | 11. | 1975 | Manila, Philippines | Hard | Geoff Masters | Syd Ball
Kim Warwick | 6–1, 6–2 |
| Loss | 9. | 1976 | Australian Open, Melbourne | Grass | Geoff Masters | John Newcombe
Tony Roche | 6–7, 4–6 |
| Loss | 10. | 1976 | Monterrey WCT, Mexico | Carpet | Geoff Masters | Brian Gottfried
Raúl Ramírez | 2–6, 6–4, 3–6 |
| Loss | 11. | 1976 | Jackson WCT, U.S. | Carpet | Geoff Masters | Brian Gottfried
Raúl Ramírez | 5–7, 6–4, 0–6 |
| Win | 12. | 1976 | São Paulo WCT, Brazil | Carpet | Geoff Masters | Charlie Pasarell
Allan Stone | 7–5, 6–1 |
| Loss | 12. | 1976 | Wimbledon, London | Grass | Geoff Masters | Owen Davidson
Ken Rosewall | 6–3, 3–6, 6–8, 6–2, 5–7 |
| Win | 13. | 1976 | Manila, Philippines | Hard | Geoff Masters | Anand Amritraj
Corrado Barazzutti | 6–0, 6–1 |
| Loss | 13. | 1977 | Baltimore, U.S. | Carpet | Jan Kodeš | Ion Țiriac
Guillermo Vilas | 3–6, 7–6, 4–6 |
| Loss | 14. | 1977 | Richmond WCT, U.S. | Carpet | Tony Roche | Wojtek Fibak
Tom Okker | 4–6, 4–6 |
| Loss | 15. | 1977 | Toronto Indoor WCT, Canada | Carpet | Tony Roche | Wojtek Fibak
Tom Okker | 4–6, 1–6 |
| Win | 14. | 1977 | Monterrey WCT, Mexico | Carpet | Wojtek Fibak | Billy Martin
Bill Scanlon | 3–6, 6–3, 6–4 |
| Win | 15. | 1977 | Wimbledon, London | Grass | Geoff Masters | John Alexander
Phil Dent | 6–3, 6–4, 3–6, 8–9, 6–4 |
| Loss | 16. | 1977 | Sydney Indoor, Australia | Hard (i) | Geoff Masters | John Newcombe
Tony Roche | 7–6, 3–6, 1–6 |
| Win | 16. | 1978 | Tokyo Outdoor, Japan | Clay | Geoff Masters | Željko Franulović
Buster Mottram | 6–2, 4–6, 6–1 |
| Win | 17. | 1978 | Tokyo Indoor, Japan | Carpet | Geoff Masters | Pat Du Pré
Tom Gorman | 6–3, 6–4 |
| Loss | 17. | 1978 | Manila, Philippines | Clay | Chris Kachel | Sherwood Stewart
Brian Teacher | 3–6, 6–7 |
| Loss | 18. | 1979 | Dayton, U.S. | Carpet | Phil Dent | Cliff Drysdale
Bruce Manson | 6–3, 3–6, 6–7 |
| Loss | 19. | 1979 | French Open, Paris | Clay | Phil Dent | Gene Mayer
Sandy Mayer | 4–6, 4–6, 4–6 |
| Win | 18. | 1979 | Brisbane, Australia | Grass | Geoff Masters | John James
Chris Kachel | 7–6, 6–2 |
| Win | 19. | 1980 | Republic of China | Carpet | Jaime Fillol | Andy Kohlberg
Larry Stefanki | 6–2, 7–6 |
| Win | 20. | 1980 | Tokyo Outdoor, Japan | Clay | Jaime Fillol | Terry Moor
Eliot Teltscher | 6–3, 3–6, 6–4 |
| Loss | 20. | 1981 | Mexico City, Mexico | Clay | John Alexander | John Newcombe
Tony Roche | 7–6, 3–6, 1–6 |
| Loss | 21. | 1981 | Cleveland, U.S. | Hard | Syd Ball | Marty Davis
Chris Dunk | 3–6, 4–6 |