The team performed well in 2003–04 Serie C2 season, fighting for supremacy near the top of the table with Brindisi. The two teams will take turns to occupy first place until the very end of the season. On the final day, Frosinone, with a point less than Brindisi, travelled to Melfi, while Brindisi faced a tough trip away to Sicilian club Igea Virtus. Both Melfi and Igea were in the running for a place in the play-offs, leaving it all to play for in these two clashes. Frosinone beat Melfi thanks to a great goal by Ciro De Cesare, while Brindisi failed to beat Igea.