Result | No. | Date | Tournament | Surface | Opponent | Score | Win | 1. | Nov 1973 | Buenos Aires | Clay | Björn Borg | 3–6, 6–7, 6–4, 6–6, ret. | Win | 2. | Jul 1974 | Gstaad | Clay | Manuel Orantes | 6–1, 6–2 | Win | 3. | Jul 1974 | Hilversum | Clay | Barry Phillips-Moore | 6–4, 6–2, 1–6, 6–3 | Win | 4. | Aug 1974 | Louisville | Clay | Jaime Fillol | 6–4, 7–5 | Win | 5. | Aug 1974 | Toronto | Clay | Manuel Orantes | 6–4, 6–2, 6–3 | Win | 6. | Oct 1974 | Tehran | Clay | Raúl Ramírez | 6–0, 6–3, 6–1 | Win | 7. | Nov 1974 | Buenos Aires | Clay | Manuel Orantes | 6–3, 0–6, 7–5, 6–2 | Win | 8. | Dec 1974 | Masters, Melbourne | Grass | Ilie Năstase | 7–6, 6–2, 3–6, 3–6, 6–4 | Win | 9. | May 1975 | Munich | Clay | Karl Meiler | 2–6, 6–0, 6–2, 6–3 | Win | 10. | Jul 1975 | Hilversum | Clay | Željko Franulović | 6–4, 6–7, 6–2, 6–3 | Win | 11. | Jul 1975 | Washington, D.C. | Clay | Harold Solomon | 6–1, 6–3 | Win | 12. | Aug 1975 | Louisville | Clay | Ilie Năstase | 6–4, 6–3 | Win | 13. | Nov 1975 | Buenos Aires | Clay | Adriano Panatta | 6–1, 6–4, 6–4 | Win | 14. | Feb 1976 | St. Louis WCT | Carpet | Vijay Amritraj | 4–6, 6–0, 6–4 | Win | 15. | Feb 1976 | Fort Worth WCT | Hard | Phil Dent | 6–7, 6–1, 6–1 | Win | 16. | Apr 1976 | Monte Carlo WCT | Clay | Wojciech Fibak | 6–1, 6–1, 6–4 | Win | 17. | Aug 1976 | Toronto | Clay | Wojciech Fibak | 6–4, 7–6, 6–2 | Win | 18. | Nov 1976 | São Paulo WCT | Carpet | José Higueras | 6–2, 6–0 | Win | 19. | Nov 1976 | Buenos Aires | Clay | Jaime Fillol | 6–2, 6–2, 6–3 | Win | 20. | Feb 1977 | Springfield | Carpet | Stan Smith | 3–6, 6–0, 6–3, 6–2 | Win | 21. | Apr 1977 | Buenos Aires | Clay | Wojtek Fibak | 6–4, 6–3, 6–0 | Win | 22. | Apr 1977 | Virginia Beach | Clay | Ilie Năstase | 6–2, 4–6, 6–2 | Win | 23. | Jun 1977 | French Open, Paris | Clay | Brian Gottfried | 6–0, 6–3, 6–0 | Win | 24. | Jul 1977 | Kitzbühel | Clay | Jan Kodeš | 5–7, 6–2, 4–6, 6–3, 6–2 | Win | 25. | Jul 1977 | Washington, D.C. | Clay | Brian Gottfried | 6–4, 7–5 | Win | 26. | Jul 1977 | Louisville | Clay | Eddie Dibbs | 1–6, 6–0, 6–1 | Win | 27. | Aug 1977 | South Orange | Clay | Roscoe Tanner | 6–4, 6–2 | Win | 28. | Aug 1977 | Columbus | Clay | Brian Gottfried | 6–2, 6–1 | Win | 29. | Sep 1977 | US Open, New York | Clay | Jimmy Connors | 2–6, 6–3, 7–6, 6–0 | Win | 30. | Sep 1977 | Paris | Clay | Christophe Roger-Vasselin | 6–2, 6–1, 7–6 | Win | 31. | Oct 1977 | Tehran | Clay | Eddie Dibbs | 6–2, 6–4, 1–6, 6–1 | Win | 32. | Nov 1977 | Bogotá | Clay | José Higueras | 6–1, 6–2, 6–3 | Win | 33. | Nov 1977 | Santiago | Clay | Jaime Fillol | 6–0, 2–6, 6–4 | Win | 34. | Nov 1977 | Buenos Aires | Clay | Jaime Fillol | 6–2, 7–5, 3–6, 6–3 | Win | 35. | Dec 1977 | Johannesburg WCT | Hard | Buster Mottram | 7–6, 6–3, 6–4 | Win | 36. | May 1978 | Hamburg | Clay | Wojtek Fibak | 6–2, 6–4, 6–2 | Win | 37. | May 1978 | Munich | Clay | Buster Mottram | 6–1, 6–3, 6–3 | Win | 38. | Jul 1978 | Gstaad | Clay | José Luis Clerc | 6–3, 7–6, 6–4 | Win | 39. | Aug 1978 | South Orange | Clay | José Luis Clerc | 6–1, 6–3 | Win | 40. | Oct 1978 | Aix-en-Provence | Clay | José Luis Clerc | 6–3, 6–0, 6–3 | Win | 41. | Oct 1978 | Basel | Hard | John McEnroe | 6–3, 5–7, 7–5, 6–4 | Win | 42. | Dec 1978 | Australian Open, Melbourne | Grass | John Marks | 6–4, 6–4, 3–6, 6–3 | Win | 43. | Jan 1979 | Hobart | Grass | Mark Edmondson | 6–4, 6–4 | Win | 44. | Jul 1979 | Washington, D.C. | Clay | Víctor Pecci | 7–6, 6–6, retired | Win | 45. | Nov 1979 | Buenos Aires | Clay | José Luis Clerc | 6–1, 6–2, 6–2 | Win | 46. | Dec 1979 | Australian Open, Melbourne | Grass | John Sadri | 7–6, 6–3, 6–2 | Win | 47. | May 1980 | Rome | Clay | Yannick Noah | 6–0, 6–4, 6–4 | Win | 48. | Jul 1980 | Kitzbühel | Clay | Ivan Lendl | 6–3, 6–2, 6–2 | Win | 49. | Sep 1980 | Palermo | Clay | Paul McNamee | 6–4, 6–0, 6–0 | Win | 50. | Feb 1981 | Mar del Plata | Clay | Víctor Pecci | 2–6, 6–3, 2–1, retired | Win | 51. | Mar 1981 | Cairo | Clay | Peter Elter | 6–2, 6–3 | Win | 52. | Apr 1981 | Houston | Clay | Sammy Giammalva Jr. | 6–2, 6–3 | Win | 53. | Feb 1982 | Buenos Aires | Clay | Alejandro Ganzábal | 6–2, 6–4 | Win | 54. | Mar 1982 | Rotterdam | Carpet | Jimmy Connors | 0–6, 6–2, 6–4 | Win | 55. | Mar 1982 | Milan | Carpet | Jimmy Connors | 6–3, 6–3 | Win | 56. | Apr 1982 | Monte Carlo | Clay | Ivan Lendl | 6–1, 7–6, 6–3 | Win | 57. | May 1982 | Madrid | Clay | Ivan Lendl | 6–7, 4–6, 6–0, 6–3, 6–3 | Win | 58. | Jul 1982 | Boston | Clay | Mel Purcell | 6–4, 6–0 | Win | 59. | Jul 1982 | Kitzbühel | Clay | Marcos Hocevar | 7–6, 6–1 | Win | 60. | Feb 1983 | Richmond WCT | Carpet | Steve Denton | 6–3, 7–5, 6–4 | Win | 61. | Feb 1983 | Delray Beach WCT | Clay | Pavel Složil | 6–1, 6–4, 6–0 | Win | 62. | Jul 1983 | Kitzbühel | Clay | Henri Leconte | 7–6, 4–6, 6–4 |
Runners-ups (42)- 1972 – Buenos Aires, Cincinnati
- 1974 – Washington D.C.
- 1975 – San Francisco, Boston, French Open
- 1976 – Rome, Dallas WCT, São Paulo WCT
- 1977 –
- 1978 – French Open
- 1979 – Sydney Indoor, Indianapolis, Rome, Stuttgart Indoor, Richmond WCT
- 1980 – Barcelona, Madrid, Hamburg, Monte Carlo
- 1981 – Buenos Aires, Barcelona, North Conway, Washington D.C., Kitzbühel, Boca Raton,
- 1982 –
- 1983 –
- 1986 – Forest Hills
- * Unfinished due to weather Finalist Awarded
Other singles titles not listed by the ATP website (6)
No. | Date | Tournament | Surface | Opponent | Score | 1. | 12 March 1972 | Buenos Aires, River Plate Championships, Argentina | Clay | Héctor Romani | 6–2, 6–4, 6–2 | 2. | 10 March 1974 | Buenos Aires, River Plate Championships, Argentina | Clay | Julián Ganzábal | 7–6, 4–6, 6–3, 6–3 | 3. | 20 April 1975 | Buenos Aires, River Plate Championships, Argentina | Clay | Clark Graebner | 6–2, 6–1, 6–4 | 4. | 28 August 1977 | Rye, Westchester Country Club, US | Clay | Ilie Năstase | 6–2, 6–0 | 5. | 28–30 October 1977 | Caracas, The Super Tennis 77 Tournament, Venezuela | Clay | Ilie Năstase | 6–2, 6–2 | 6. | 25–26 July 1979 | Aix-en-Provence, Invitational Tournament, France | Hard | Ilie Năstase | 6–4, 6–4 |
DoublesTitles (16)- 1973 – Buenos Aires
- 1974 – Buenos Aires, Tehran, Toronto, Hilversum
- 1975 – Barcelona, Louisville, Hilversum
- 1977 – Buenos Aires, Tehran, Nice, Baltimore
- 1978 – Aix-En-Provence, Munich
- 1979 – North Conway, San Jose
Records - These records were attained in Open Era of tennis.
- ^ Denotes consecutive streak.
Event | Years | Record accomplished | Player tied | US Open | 1977 | 72.1% games winning percentage in 1 tournament | Stands alone | Grand Prix Tour | 1977 | 16 titles in 1 season | Stands alone | Grand Prix Tour | 1977 | 14 clay court titles in 1 season | Stands alone | Grand Prix Tour | 1973–83 | 49 clay court titles | Stands alone | Grand Prix Tour | 1973–88 | 632 clay court match wins | Stands alone | Grand Prix Tour | 1977 | 145 match wins in 1 season | Stands alone | Grand Prix Tour | 1973–83 | 794 outdoor matches won | Stands alone |
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