During his career, Lonfat represented Lausanne Sports (1991-92), FC Sion (1992-98), Servette FC (1998-2002 and 2007-09) and FC Sochaux (2002-2007, playing 96 Ligue 1 matches with one goal), subsequently returning to Servette. A Swiss international, he received a total of 24 caps.
- L'Équipe stats (French)
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