 Groves learned to swim when she was a baby, and started competitive swimming when she was twelve years old.As a junior, she won the 100 m and 200 m butterfly and 4 × 100 m medley events, and silver in the 50 m butterfly, at the 2010 Oceania Swimming Championships in Samoa.At the Junior Pan Pacific championships in Hawaii that year she came second in the 200 m butterfly and fifth in the 100 m butterfly events.