Yosef Porath competed in the Chess Olympiads twelve times. In 1928, Foerder was a member of the German team at the 2nd Olympiad in The Hague. He played several times in Silesian Chess Congress: shared 1st with Ludwig Schmitt at Gleiwitz 1927; took 2nd, behind Gottlieb Machate, at Reichenbach 1928; and won at Breslau 1930, shared 1st at Bad Salzbrunn 1931, and again won at Ratibor 1932. He also won, ahead of Salo Flohr, at Bilina 1930, and took 2nd, behind Gottlieb Machate, at Breslau 1933.