[3][5] In their first season together, the pair won their national title and were sent to the 1995 European and World Championships, finishing 9th and 16th in their debuts.

The following season, they placed 8th in their Champions Series (later renamed Grand Prix) debut at the 1995 Trophée de France.

During the next Grand Prix season, they obtained bronze at the 2002 Bofrost Cup on Ice and silver at the 2002 NHK Trophy.

In spring 2003, Zagórska / Siudek moved to Montreal, Quebec, Canada to work with Richard Gauthier.

In the 2004–2005 season, Zagórska / Siudek added two more bronze medals to their Grand Prix collection at the 2004 Skate Canada International and 2004 NHK Trophy.

They had to withdraw from their third GP event, the 2004 Cup of Russia, after Zagórska injured her shoulder in a fall during the short program.

The Siudeks withdrew from the 2007 World Championships due to an injury sustained by Mariusz during the long program.