Dee ihe na-aga n'ihu maka paragraf a - Mednis gbara onye nke abụọ na 1955 World Junior Championship n'azụ Boris Spassky (ha abụọ kwadoro egwuregwu ha). Ọ bụ ya bụ onye egwuregwu mbụ meriri Bobby Fischer n'asọmpi US Championship. O so n'otu ndị otu mba Amerịka n'afọ 1962 n'egwuregwu Olimpik nke iri na ise.
wee mechaa nke atọ n'asọmpi US n'afọ 1961 na 1962. Nsonaazụ asọmpi gụnyere nke atọ na Houston 1974, nke anọ na New York City 1980, na nke mbụ na Puerto Rico 1984. Puerto Rico Chess Federation, karịa United States Chess Federation, kwadoro ya maka aha Grandmaster. Ọ gbara bọọlụ na asọmpi Interzonal nke 1979 na Riga, ebe amụrụ ya.