One of netball's most consistent players, Hornibrook is noted for her speed and persistence, being nicknamed "the rash" by some opponents. She has been an integral member of the Sydney Swifts national league team since 2000, and has played a key role in their four premierships (2001, 2004, 2006 and 2007). She was named the best player on court in the 2007 grand final. A versatile player and natural athlete, she forms a formidable combination with fellow Australian representatives Liz Ellis and Mo'onia Gerrard, and rarely puts in a poor performance.