Dee ihe ọzọ maka paragraf a - N'ọrụ ịkụ ọkpọ ya tupu agha, malite na 1928, ọ meriri Dutch Amateur National Championship ugboro asatọ. Dị ka ebe dị elu n'ọrụ amateur ya, o nwetara ihe nrite ọlaedo n'egwuregwu Maccabiah nke 1935
, nke e mere na Tel Aviv, Israel.