Chajes was JewishChess and Jews by Edward Winter at www.chesshistory.com and was born in Brody, Galicia, Austria-Hungary, in what is now Ukraine. In 1909, he won in the U.S. Open Championship in Excelsior, Minnesota. The next year he took second in the same event at Chicago 1910. In January/February 1911, he tied for 3rd-4th in New York behind Frank Marshall and José Raúl Capablanca. In August/September 1911, he tied for 23-26th in Karlsbad (Richard Teichmann won), but won brilliancy prizes for his victories over Savielly Tartakower and Julius Perlis. In 1913, he tied for 5-6th in New York. In 1913, he tied for 4-5th in New York. In February/March 1913, he tied for 4-5th in Havana. In 1913, he took 3rd in New York (Quadrangular).
