She said public speaking was her passion so nerves were not a factor.
"My speech had a different dynamic to the others which I think helped it to stand out for the judges. After I had done it I had so many people coming up to me. One lady, who was a nurse, put her head on my shoulder and started to cry saying she had never felt appreciated like that before. That to me was a huge reaction."
Jordyn received $1000 for herself and $1000 for her school as a reward for winning the regional competition and will be heading to the national final in Wellington next week.
There she will compete for the chance to travel to Gallipoli for 2016 Anzac Day commemorations, as well as a $1000 travel fund, trophy, laptop and digital camera.
RSA national president BJ Clark said there had been a fantastic level of interest in the competition.
"We are especially grateful to ANZ for the commitment they have made to this partnership in conducting this event. They have been with us since 2010 and have been generous in making this happen," he said.
"Its aim is to promote among young people a deeper understanding and appreciation of the sacrifices made by those who served New Zealand in war and armed conflict.
"It's positive to see so many contestants speaking on and sharing their experiences of the Anzac spirit, as it relates to them."