 In 1973, on the ATP tour, he reached the quarterfinals of the Welsh Open on grass, and the semifinals of the U.S. National Hardcourts in Aptos, CA, defeating 1973 U.S. Open men's singles runner-up, world #5 Jan Kodeš, 6-4, 6-3.In 1974 indoor tournaments he reached the quarterfinals of the Canadian Indoor after defeating Vitas Gerulaitis, the quarterfinals in the Arkansas International, and the semifinals in Salt Lake City.He reached a career-high ranking of World No.