Edge had to self-fund to get to Avilés, relying on her own efforts as well as funding from various rotary and lions clubs, who she had dealings with through her own work.
The help in financing the trip was vital as the costs of licenses and insurance were high.
Edge put herself through rigorous training to get to the world championships.
"I started three months out. It consisted of a lot of early mornings. I trained six days a week; two hours during the week and a bi more on the weekends," she said.
"I did crossfit with Far North Cross Fit and competed in the Park/Run series. Everyone was really helpful as they knew what I was doing. I had to bike on my own, so I fit it in during work."
"Christine Fraser Kitchen was a big help. She helped set up my trainings and kept in contact while I was in Spain. She was there when anything came up."
The duathlon consists of a 5km run, a 20km bike and a 2.5km run to finish.
Edge has qualified for the next World Duathlon Championships which take place in Penticton, Canada, from August 18-27.
For Canada, Edge is hopeful she won't be the only Northlander present.
"Paul Sumich, Dennis Langford, Ruth Hutchinson, Kurt Coetzee and Fiona Southorn have all qualified for Canada," she said.
"Kurt's age group (16-19) is highly competitive, but I'm sure he'll come along."
There are 40 members that take part in duathlons up north, and Edge said the camaraderie between competitors is great.
"The team atmosphere is awesome, you make some really great friends. We're like one big family."
The next Northland duathlon race is at Marsden Cove on September 28.
