He was to be sentenced on the charges in the Whanagrei District Court today but the matter has instead been transferred to the High Court - a higher authority - for sentencing.
Christy has been remanded in custody and will be sentenced in the High Court at Whangarei on October 21.
The attack caused outrage in the city and sparked a Reclaim Our Loop rally that saw more than 1000 people take to the loop two days later in a show of solidarity for the woman, one of the organisers said.
The Reclaim Our Loop rally was organised by 10 mothers who run the track regularly, with the aim of making the space feel safe again and to raise money for the victim, who is in her 20s.
The attack also saw the Whangarei District Council bring forward plans to have lighting on part of the loop and to put in CCTV cameras, which are now up and running.