Tendler was knocked out only once in his career on January 19, 1925 against Jack Zivic in Pittsburgh. In the fifth round, a left by Zivic sent Tendler spinning to the floor for a count of nine.
This account highlights Tendler's single career loss on January 19, 1925, at the hands of Jack Zivic in Pittsburgh. The fifth round proved decisive, as Zivic's left hand sent Tendler crashing to the floor for a full count of nine.