She already had two wins in Rotorua and Tauranga on her scoreboard before the final event in Auckland on August 10 and 11.
But her success didn't come without plenty of hard work and determination. She spent many hours on the climbing walls at the Kiwi Adventure Hall in Napier.
"I do loads and loads of training, about six days a week, but you do have to have some rest days."
For her the appeal of climbing was about pushing boundaries and setting goals for herself.
"I love trying to test myself, I like the challenge."
Ms Whitehead didn't have much time to bask in the glory of her title win.
She's already training for the national competition to be held in Christchurch on October 6 and 7.
Climbers who went on to compete at the National Indoor lead-climbing series were decided in four rounds held across the country over the past few months - the first in Wanaka, second Rotorua, third in Mount Maunganui and the last in Auckland.