Making their ISU Junior Grand Prix (JGP) debut, they took the bronze medal in Braşov, Romania in September of the same year.

They placed 5th at their second JGP assignment, in Tallinn, Estonia, and fourth on the junior level at the 2012 Canadian Championships.

[1] Bent/MacKeen returned to the JGP series in 2012–13, winning a bronze medal in Linz, Austria and placing fourth in Zagreb, Croatia.

Competing in the 2013–14 JGP series, Bent/MacKeen won gold in Riga, Latvia and finished 6th in Košice, Slovakia.

During the 2014–15 JGP season, Bent/MacKeen won gold in Ostrava, Czech Republic and silver in Tallinn, Estonia.