[2] A baseline player with a strong forehand, she reached the singles final of a Grand Slam tournament on three occasions.

In women's doubles, Jędrzejowska won the 1939 French Championships with Mathieu, defeating Alice Florian and Hella Kovac in the final in two sets.

Three years earlier Jędrzejowska's and Susan Noel were runners-up at the French Championships, losing the final to Mathieu and Billie Yorke.

At the 1938 U.S. Championships Jędrzejowska and Mathieu lost the final to the American pair Alice Marble and Sarah Palfrey Cooke.

In the mixed doubles final at the 1947 French Championships, Jędrzejowska and Cristea Caralulis lost to Eric Sturgess and Sheila Summers without winning a game.