1972 Final,French Open • Grand Slam 1972 Semi final,National Bank Open • ATP Masters 1000 1977 Amersfoort • ATP 250 1972 Semi final,Australian Open • Grand Slam 1971 Quarter final,French Open • Grand Slam 1973 Semi final,Monte Carlo • ATP Masters 1000 1971 Semi final,Cincinnati • ATP Masters 1000 1974 Quarter final,Hamburg • ATP Masters 1000 1979 Semi final,Bastad • ATP 250 1973 Quarter final,Houston • ATP 250 1973 Semi final,Gstaad • ATP 250 1975 3rd round,French Open • Grand Slam 1974 3rd round,French Open • Grand Slam 1973 Quarter final,Cincinnati • ATP Masters 1000 1972 3rd round,Cincinnati • ATP Masters 1000 1971 Quarter final,Monte Carlo • ATP Masters 1000 1969 3rd round,Monte Carlo • ATP Masters 1000 1979 Quarter final,Gstaad • ATP 250 1978 Quarter final,Paris • ATP 250 1977 Quarter final,Munich • ATP 250 1976 3rd round,Dusseldorf • ATP 250 1975 Quarter final,Bastad • ATP 250 1972 3rd round,Houston • ATP 250 1971 Quarter final,Bastad • ATP 250 1978 Quarter final,Amersfoort • ATP 250 1972 Quarter final,Adelaide • ATP 250 1981 2nd round,French Open • Grand Slam 1978 2nd round,French Open • Grand Slam 1977 2nd round,US Open • Grand Slam 1977 2nd round,French Open • Grand Slam