In 1896, he had challenged Jackson Whipps Showalter, the U.S. Champion, to a match, which Kemeny lost, with the final score of +4 –7 =4.
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He tied for 4-5th at Philadelphia 1898, shared 1st at Philadelphia 1899-1900, took 3rd at Philadelphia 1900-1901, and took 4th at St. Louis 1904 (the 7th American Chess Congress won by Frank James Marshall).
Carl Gustaf Emil Mannerheim | Emil Nolde | Emil Adolf von Behring | Hermann Emil Fischer | Emil Gilels | Emil Fischer | Emil Schult | Emil Constantinescu | Emil Brumaru | Franz Joseph Emil Fischer | Emil Viklický | Emil Steinberger | Emil Rödiger | Emil Nofal | Emil Młynarski | Emil Jakob Schindler | Emil Holub | Emil Haury | Emil Ghuri | Emil du Bois-Reymond | Emil Beaulieau | Emil Zátopek | Emil von Sauer | Emil Theodor Kocher | Emil Savundra | Emil River | Emil Lederer | Emil Kraepelin | Emil Knoevenagel | Emil Kapaun |
Showalter won U.S. Championship matches against Max Judd (1891/92, +7-4=3), Albert Hodges (1894, +7-6=4), S. Lipschütz (1895, +7-4=3), Emil Kemény (1896, +7-4=4), and John Finan Barry (1896, +7-2=4).