Originally from Penrith in New South Wales, Mercieca started gymnastics at the age of five, first representing Australia in 2007 as a Junior and has since gone on to compete at the World Championships, World University Games and the Pacific Rim Championships.
After promising results in his first few years as a Senior athlete, Michael’s break-out performance came at the 2014 Australian Gymnastics Championships when he took home five medals - three Silver and two Bronze – and as result was named on the 2014 Commonwealth Games team.
Injury forced his withdrawal from Commonwealth Games selection, but he recovered quickly and carried strong form through to his first World Championships in Nanning, China.
He finished fourth in the All-Around competition in the 2015 Australian Gymnastics Championship, taking home a silver medal for the Parallel Bars and a Bronze for Rings, before competing at the World University Games in South Korea.
Mercieca was the sole Male Gymnasts selected to represent Australia at the Aquece Olympic Test Event in Rio de Janeiro, eventually being named as the second reserve for the 2016 Olympics Games in Brazil.
In 2017, a standout year for Mercieca, he won his inaugural Senior Australian All-Around title and competed in the World Cup in Melbourne, the World University Games in Taipei and his second World Championships in Montreal, Canada.
On the back of consistent results over the past few years Michael was chosen to represent his country at the 2018 Commonwealth Games on the Gold Coast of Queensland. With the experienced, well rounded program he is capable of putting together a Comm. Games All-Around podium result is a strong possibility for Mercieca.
Michael started training at the Gymnastics Queensland High Performance Centre in Brisbane, before moving to Canberra to train at the National Centre of Excellence under the supervision of Sergei Chinkar and Vladimir Vatkin. He then later moved back to Queensland, where he is currently training at the Lawnton Academy of Artistic Gymnastics.