Mezue ahịrịokwu na-esonụ: Choi duziri marathon n'egwuregwu Olimpik nke 1948 e mere na London tupu ya adaa mgbe ọ fọdụrụ ihe na-erughị kilomita 5 n'ọsọ ahụ. Ọ gbara onye nke atọ na 1950 Boston Marathon, mana Boston Athletic Association jụrụ ịbanye ya na ihe omume nke afọ na-esote. N'oge Agha Korea nọ n'ọgba aghara, Onyeisi nke BAA bụ Walter A. Brown kwuru, sị: "Ka ndị agha America na-alụ ọgụ ma na-anwụ na Korea, onye Korea ọ bụla kwesịrị ịlụ ọgụ iji chebe obodo ya kama ịzụ ọzụzụ maka ịgba ọsọ marathon. Ọ bụrụhaala na agha ahụ ka na-aga n'ihu n'ebe ahụ, anyị agaghị anabata ndị Korea n'ọsọ anyị ga-agba n'April 19". N'afọ 1952, Choi gbara onye nke anọ na
Marathon Olimpik na Helsinki.