Initially she took part in the sport of aquathon before she joined the University of Melbourne fencing club and began her modern pentathlon career.

[2] Following her retirement from competition she took up a position at the Holmesglen Institute of TAFE in Melbourne where she was responsible for providing training to 15,000 members of the workforce for the 2006 Commonwealth Games that were held in the city.

[7] Chiller continued her insistence upon discipline amongst current athletes, by banning Rio gold medallist Emma McKeon and fellow swimmer Josh Palmer from the Olympic closing ceremony after both breached team protocols.

After July 2022 she stayed in the role for 9 months being permitted to perform this function in limited capacity due to current sanctions from International Gymnastics Federation prohibiting her from formally representing the FIG or the OGU (i.e. making speeches, awarding prizes or any other act of ceremonial representation) in connection with any gymnastics competition on the FIG calendar for a period of 2 years.

[13] In January 2024 Nick Kyrgios suggested that due to his treatment by AOC and particularly Kitty Chiller he would not represent Australia at the 2024 Summer Olympics.

[14] Kyrgios stated: "“The way I was treated by the Australian Olympic Committee and former chef de mission Kitty Chiller will never be forgotten.

"[15] Chiller has been sanctioned for her role in “judging irregularities” at an Olympic qualification event in 2021 and banned from representing international gymnastic bodies for two years.

[12] During the disciplinary proceedings Chiller was found by the Gymnastics Ethics Foundation (GEF) to have provided a false sworn statement to the Court of Arbitration for Sport about her role in a judging controversy at a qualifying event for the Tokyo Olympics.