Career
Born in Guardiagrele, in the Province of Chieti, Abruzzo region, Di Filippo started his career at SPAL Lanciano (originally found as San Pietro Apostolo Lanciano), also located in the province. In July 2007 Di Filippo and Mattia Di Vincenzo were signed by Tuscan team Siena. Circa 2008 Di Filippo returned to Lanciano for Virtus Lanciano.
Di Filippo also played 3 times in Lega Pro Prima Divisione, in the 2 out of last 3 rounds in 2010-2011 season, as well as the round 22 in 2011-2012 season.
Di Filippo also played once in 2010-2011 Lega Pro Cup He also played once in 2011-2012 Italian Cup and twice in 2011-2012 Lega Pro Cup. On 22 July 2012 Di Filippo left for the fourth division club Chieti in temporary deal, along with Luca Verna.
Di Filippo was linked Chieti on 7 July but still received pre-season call-up from Lanciano on 21 July. The temporary deal was renewed on 31 August 2013.
He also played for Lanciano as unused bench in 2013-2014 Italian Cup.
On 4 August 2014 he was signed by Melfi.