The additional 15 age-group qualifying slots for New Zealand bring the total to 55 slots.
The winner of each age-group will earn a qualifying spot with the remainder of the slots decided on a pro-rata formula that is based on the number of entries in each age-group.
The race is the original international Ironman event, second oldest only to the World Ironman Championship in Hawaii, and the biggest and richest annual one-day international sporting event in New Zealand with approximately $75,000 prize purse for professionals.
It marks the 18th year for the event based in Taupo after the initial 14 years in Auckland from 1985 - making it the oldest and biggest triathlon in New Zealand.
The professional field will be finalised by February 20. We have received confirmation that 11-time New Zealand champion Cameron Brown will compete along with defending women's champion Meredith Kessler (USA) who won the 70.3 Taupo title in December.