Fourth in the group three Lowland Stakes in her lead-up to Wellington, Fanatic settled back of midfield and once she got into the clear in the straight she rounded off strongly for rider Mark Hills.
The first group one winner for Rich Hill Stud stallion Shocking, Fanatic is raced by her breeder Sean Kiernan and was born and raised at Curraghmore, the Waikato nursery of his brother-in-law Gordon Cunningham.
Her dam is Kiernan's only broodmare Komplete Klass, a daughter of Groom Dancer who is a half-sister to the dam of the group one TJ Smith Classic winner Rockdale.
"Sean's the president of the Hawera Racing Club," Sanders said. "He's a long-standing client and I ring him every Friday night. He's my biggest supporter, he totally deserves this - it's just magic."
While naturally disappointed with the outcome of the Oaks, Sofia Rosa's second placing did confirm her as the winner of the NZB Filly of the Year title.