Cox is 41 now and Dooney "a couple of years older".
"Phil has been up in Vanuatu teaching with his wife, but we managed a four-day training camp together in Turangi between Christmas and New Year. Apart from that we've been training individually. Hopefully we've done enough so we don't completely bake ourselves."
While most sections of the race were gruelling, Cox said athletes got the chance to soak up the amazing scenery.
"After this we are both planning to compete in the Coast to Cost two-day event as individuals. It will be the first time for both of us, although Phil has raced the Coast one-day event before - it's gotta be done," an eager Cox said.
This weekend's Red Bull Defiance is the second instalment of this epic, 160km, two-day, two-person team race in and has been amped up in intensity from the inaugural event in 2014.
The men's elite team and mixed elite team categories will feature more of the best adventure racers on the planet, with competition for the winner's titles in each of these divisions expected to be extremely fierce. With the addition of an even stronger international field, the most significant change is the inclusion of a women's elite category. It will see the strongest female team take their share of the prize purse, which totals $32,000 cash, with an additional $10,000 worth of product vouchers.