In 2008, Warriner won the ITU World Cup series overall. Going into the final round in second position she needed to finish seventh or above in the Mexican finale and did it in style by claiming victory. She was awarded the World Cup at the Madrid ITU World Congress at the beginning of December.
In all Warriner won seven World Cup events, leaving her ninth on the all time list of female winners.
At the 2008 Olympics in Beijing she finished 16th.
She later competed in more half-ironman competitions and spent some time in the United States competing and training.
She has recently had her first child, Lola-Rose, and the former teacher has also begun to train Northland's up-and-coming triathletes - some of whom she inspired to get involved in the sport.