Born in
Modena, Italy, Piancastelli moved to
Carlsbad, California with her family at age five. Her mother is
Loredana Auletta, an Italian softball player who competed as a catcher and third baseman on Italy's 2000 Summer Olympic team. Erika graduated from
Carlsbad High School in 2014. She attended
McNeese State University in
Lake Charles, Louisiana. She would earn conference Freshman and Player of The Year accolades and was recognized Third Team All-American by the National Fastpitch Coaches Association after leading the team in
hits, average, RBIs, home runs, doubles and slugging, the homers were a new school record and her hits and average career bests. On March 6, Piancastelli hit two home runs to drive in a career-best 5 RBIs against the
Sam Houston State Bearkats. In her sophomore campaign, Piancastelli earned her second conference and NFCA honors. She broke the school records for home runs, slugging and walks, all career highs, the latter stat also set the conference standard. Beginning on March 3–18, the cowgirl went on an 11-consecutive-game hit streak batting: .469 (15/32) with 18 RBIs, 6 home runs, four doubles, 6 walks and slugging 1.687%. Later, she would set a single game McNeese record with 5 walks on April 16, in a defeat of the
Northwestern State Demons. She would achieve a second single-game highlight for hits with a perfect day at the plate on May 13 against the
Lamar Cardinals, with a 4/4 performance. As a junior, she earned her third Player of The Year for the Southland and set a career best with 26 stolen bases. 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. For a final year, Piancastelli was awarded her fourth and last Player of The Year honor. She set her last records with career-best RBIs and doubles. 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. Piancastelli currently owns nearly all offensive career records for the Cowgirls, not including hits and triples. She is the Southland leader in RBIs, home runs, doubles, slugging and walks. In all of the NCAA, she ranks 7th in walks and slugging for her career. ==Career==