1975 Johannesburg • WCT 1978 Semi final,Hamburg • ATP Masters 1000 1977 Semi final,Hamburg • ATP Masters 1000 1979 Semi final,Tokyo • ATP 500 1982 Semi final,Memphis • ATP 250 1978 Final,Munich • ATP 250 1982 Final,Amersfoort • ATP 250 1982 4th round,Wimbledon • Grand Slam 1980 4th round,US Open • Grand Slam 1977 4th round,French Open • Grand Slam 1982 Quarter final,Hamburg • ATP Masters 1000 1977 Quarter final,National Bank Open • ATP Masters 1000 1982 Semi final,Rotterdam • ATP 500 1980 Quarter final,Tokyo • ATP 500 1973 Quarter final,Barcelona • ATP 500 1978 Semi final,Stuttgart • ATP 250 1976 Quarter final,Houston • ATP 250 1975 Semi final,Munich • WCT 1980 Semi final,Amersfoort • ATP 250 1980 3rd round,French Open • Grand Slam 1979 3rd round,US Open • Grand Slam 1979 3rd round,French Open • Grand Slam 1978 3rd round,French Open • Grand Slam 1977 3rd round,Wimbledon • Grand Slam 1974 3rd round,Wimbledon • Grand Slam 1982 3rd round,Rome • ATP Masters 1000 1982 3rd round,Indian Wells • ATP Masters 1000 1976 3rd round,National Bank Open • ATP Masters 1000 1975 Quarter final,Monte Carlo • ATP Masters 1000 1981 3rd round,Tokyo • ATP 500