The most recent edition of this event was on 7 May 2017.
The Sri Chinmoy Marathon Team in Christchurch organise an annual ultra trio at Hagley Park North in Christchurch, with this year's event on Sunday, 1 May 2016.
There are 100km, 50 mile and 50km races, which follow a loop course. The 100km race incorporates the Athletics New Zealand National 100km Championships. To be considered for Athletics New Zealand Championship titles, athletes must be registered through an affiliated athletics club in New Zealand.
The 100km can be run solo, or as part of a 4 person relay team.