Mary-Anne has overcome a turbulent past few years with career threatening injuries to become a permanent fixture in the Australian Team.
Mary-Anne was selected as a travelling reserve for the London 2012 Olympic Games.
After 2 years out of competition, Mary-Anne returned in 2014 at the World Challenge Cup in Doha, and executed her Beam routine brilliantly to score 14.700 in the final and take out the silver medal, just 0.1 behind Romanian Larisa Iordache.
She then carried this strong form through to the recent 2014 Australian Gymnastics Championships where she captured her first senior national title, finishing first on Beam.
Mary-Anne also represented Australia at the 2014 Commonwealth Games in Glasgow, winning an individual silver medal on Beam, and team silver as well.
Mary-Anne competed in her second World Championship event in 2014 in Nanning, China, competing on 3 apparatus (Vault, Bars and Beam) to help Australia finish 7th as a team.
Although she missed the Australian Championships in 2015 due to recovering from ankle surgery, Monckton was later selected for the World Universiade Games in Korea, and competed in the Australia V China Friendly in Perth where she scored a career high 15.050 on Beam.
Shortly after being named in the team to contest the 2016 Pacific Rim Championships and Aquece Rio Test Event, Mary-Anne ruptured her ACL and was forced to withdraw from the team. She is currently undergoing rehabilitation with the aim to return in time for the 2017 Artistic Gymnastics World Championships.