As the 1991 season neared its end, the Soviet Union disbanded. At the beginning of 1992 Filimonov joined Fakel Voronezh, which unexpectedly joined the newly formed Russian Premier League, despite having finished mid-table in the Soviet First League. Despite his efforts, Fakel were relegated in their first season. Filimonov spent another season with Fakel in the Russian First League before moving to the Russian Premier League top-half team Tekstilshchik Kamyshin, having achieved 20 clean sheets in 37 matches in 1993, and a total of 71 appearances for Fakel.