1974 Perempat final,National Bank Open • ATP Masters 1000 1971 Perempat final,National Bank Open • ATP Masters 1000 1974 Semi final,Hilversum • ATP 250 1973 Semi final,Tampere • ATP 250 1974 Semi final,Roma • ATP 250 1968 Putaran 3,US Open • Grand Slam 1975 Perempat final,Umag • ATP 250 1974 Perempat final,Umag • ATP 250 1973 Putaran 2,Australia Terbuka • Grand Slam 1973 Putaran 2,Wimbledon • Grand Slam 1973 Putaran 2,Roland Garros • Grand Slam 1978 Putaran 2,Indian Wells • ATP Masters 1000 1973 Putaran 2,Monte Carlo • ATP Masters 1000 1974 Putaran 2,Boston • ATP 500 1972 Putaran 2,Tokyo • ATP 500 1972 Putaran 2,San Jose • ATP 250 1970 Putaran 2,Houston • ATP 250 1969 Putaran 2,Los Angeles • ATP 250