At the 2004 Athletics Paralympics, she finished sixth in the Women's Shot Put F32-34/52-53. She finished again in the Women's Shot Put F32-34/52-53 at the 2008 Beijing Paralympics. At the 2012 London Games, she won the silver medal in the Women's Shot Put F32-34 with a throw of 5.90 m. She finished eighth in the Women's Club Throw F31/32/51. At the 2016 Summer Paralympics, Ellery won Bronze in the Women's Shot Put F32 with a throw of 4.19.