[2][3] Born in Italy, Piancastelli eventually went to play college softball at McNeese State, where she holds multiple career records.

She is one of the elite NCAA Division I softball hitters to amass a .400 batting average, 200 RBI, 75 home runs and an .800 slugging career.

Her mother is Loredana Auletta, an Italian softball player who competed as a catcher and third baseman on Italy's 2000 Summer Olympic team.

[4] With the McNeese State Cowgirls softball team, she debuted on February 6, 2015, in a win against Florida Gulf Coast, with a 2/4 performance with a double and a RBI.

Piancastelli joined an elite club by collecting her 50th career home run in only her third year on April 21 vs. the Lamar Cardinals, striking off pitcher Amie Cisneros for an eventual victory.

On April 27, Piancastelli tallied her 200th career RBI in a 5–0 win over the Stephen F. Austin Lumberjacks, hitting a solo home run in the first inning.