Whakaotihia te rerenga e whai ake nei: Ko Mednis te tuarua i te 1955 World Junior Championship i muri i a Boris Spassky (ko te tokorua i to raatau kēmu). Ko ia te kaitākaro tuatahi i patu i a Bobby Fischer i tētahi Whakataetae o Amerika. I tākaro ia i te kapa US 1962 i te
Ko te 15th Chess Olympiad me te whakaoti i te toru o nga wa i te 1961<unk>62 US Championship. Ko nga hua o te whakataetae ko te tuatoru i Houston 1974, te tuawha i New York City 1980, me te tuatahi i Puerto Rico 1984. Ko te Puerto Rico Chess Federation, kaua ko te United States Chess Federation, i tono mana ki a ia mo te taitara Grandmaster. I takaro ia i te whakataetae Interzonal 1979 i Riga, tona kainga whanau.