Ludwig started playing handball at Bar-le-Duc when she was 10. Her first senior club was Béthunois BL, where she made her debut in 1992. Her biggest achievement here was finishing second in the 1994-95 season. She then joined AS Bondy in 1996. In 1998 she joined Metz Handball. Here she won the French championship four times; in 1999, 2000, 2002 and 2004 and the French cup in 1999. She then joined Spanish club Ferrobus Mislata for a season, before returning to Metz Handball. Her last professional clubs were ESC Yutz followed by a single season at Handball Plan de Cuques. From 2007 to 2013 she played lower league handball at Case Cressonnière.