[3] Harrison was awarded the novice bronze medal at the British Championships in the 2011–12 season and silver the following year, coached by Debi and Simon Briggs with support from Gary Peed, Peter Bækgaard, Andrew Smith and Lisa Beaumont.

Harrison debuted on the ISU Junior Grand Prix (JGP) series at the start of the 2014–15 season, placing 15th in the Czech Republic and 14th in Estonia.

In November 2014, she won the junior gold medal at the British Championships after placing first in the short program and third in the free skate.

Having attained the minimum technical scores, she was sent to the World Junior Championships in Tallinn, Estonia in March 2015.

CS: Challenger Series; JGP: Junior Grand Prix Media related to Danielle Harrison at Wikimedia Commons