1979 Lagos • ATP 250 1972 Final,Roma • ATP 250 1976 Semi final,Hamburg • ATP Masters 1000 1980 Perempat final,Wina • ATP 500 1977 Semi final,Wina • ATP 500 1976 Semi final,München • ATP 250 1976 Putaran 3,National Bank Open • ATP Masters 1000 1974 Perempat final,Wina • ATP 500 1974 Putaran 3,Barcelona • ATP 500 1980 Perempat final,Tampere • ATP 250 1976 Putaran 3,Boston • ATP 250 1975 Putaran 3,Houston • ATP 250 1975 Perempat final,Tampere • ATP 250 1974 Perempat final,Tampere • ATP 250 1977 Putaran 2,Roland Garros • Grand Slam 1976 Putaran 2,Roland Garros • Grand Slam 1975 Putaran 2,US Open • Grand Slam 1975 Putaran 2,Roland Garros • Grand Slam 1973 Putaran 2,Wimbledon • Grand Slam 1972 Putaran 2,Wimbledon • Grand Slam 1970 Putaran 2,Roland Garros • Grand Slam 1975 Putaran 2,National Bank Open • ATP Masters 1000 1975 Putaran 2,Hamburg • ATP Masters 1000 1974 Putaran 2,National Bank Open • ATP Masters 1000 1973 Putaran 2,Monte Carlo • ATP Masters 1000 1972 Putaran 2,Monte Carlo • ATP Masters 1000 1970 Putaran 2,Hamburg • ATP Masters 1000 1981 Putaran 2,Wina • ATP 500 1979 Putaran 2,Barcelona • ATP 500 1978 Putaran 2,Barcelona • ATP 500