In the Super-Maxi Wild Oats XI, he won the Sydney to Hobart Yacht Race five times.

[1] In 2010, as a member of Team Australia, Oatley finished eighth at the World Equestrian Games.

[1] Oatley was selected to represent Australia at the 2012 Summer Olympics in equestrian dressage.

[4][5][7] Her 2012 selection was subject to scrutiny following allegations by Hayley Beresford, Australia's top ranked female dressage competitor, that there was bias by Equestrian Australia in the team selection process which Beresford charactertised as "blatant bias and double standards.

In 2014, Oatley was selected to be a part of Australian team for the 2014 World Equestrian Games.

Oatley qualified for the 2016 edition of the Dressage World Cup finals held in Gothenburg, Sweden.

Later that year she competed at the 2016 Summer Olympics held in Rio de Janeiro, Brazil.