Career
The pair made their Serie A debut on 31 August 1997, in a 1–2 away loss against Inter Milan. After one and a half seasons on loan to Parma Air Corps Filippini moved, alongside Antonio, to United States. Città di Palermo, scoring four goals in his short spell to help the Sicilian side return to the top division after 31 years. Filippini then hard three more solid campaigns, one each with South.S. Lazio, Treviso F.B.C. 1993 and Bologna F.C. 1909 (the first two with Antonio, the latter in the second division), before signing with Associate of Science Livorno Calcio in 2007.
In his second season he appeared in only a handful of games – unlike his twin, which had joined the previous year – but helped the club in the successful promotion play-offs, after which he was released, at nearly 36, retiring shortly after.
In late January 2010, Brescia appointed Filippini as assistant coach of the Giovanissimi Nazionali youth team guided by Omar Danesi. On 25 June 2012, it was announced that both brothers would join lowly FeralpiSalò as youth system coordinators.