Career
Calcio Catania
Calapai began his professional career within the youth ranks of Calcio Catania, before eventually earning call-ups to the first team towards the end of the 2011-2012 Serie A campaign, under former coach, Vincenzo Montella. He made his Serie A debut on 13 May 2012, as a 79th-minute substitute in a 0-2 home loss to Udinese. On 12 July 2012, Calapai was sent out on loan to the Lega Pro Prima Divisione with South.S. Barletta Calcio.
He was a first team regular for the club, making 28 appearances and scoring 1 goal during the 2012-2013 statistical season.
He returned to Catania on 30 June 2013. Modena
On 1 July 2013, Calapai was officially sold to Modena F.C. on a co-ownership deal with Catania.
