High Quality Content by WIKIPEDIA articles! The 2003 ILF World Indoor Lacrosse Championship was the 1st ILF World Indoor Lacrosse Championship, an international box lacrosse tournament that is held every four years and was sponsored by the International Lacrosse Federation (ILF). It took place from May 15–24, 2003 in Hamilton, Kitchener, Mississauga, and Oshawa, Ontario, Canada.