Mr Holtham said they were also seeing other schools who had students eager and passionate about all things te reo Maori.
"We have seen though that schools haven't put in many students this year," he said.
"When I was in school we had students in every section."
John Paul College Year 10 student Mikaere West competed in the junior English category with his prepared speech titled, We are the guardians of the Earth.
"It went all right, I wasn't that nervous," he said.
"I think I could have done better, given more gestures."
The winners were announced late yesterday afternoon. Te Wharekura o Ngati Rongomai won both the junior and senior Maori section with Rakaea Trotman and Te Kaiamo Rogers-Smith. Junior English was won by Anipatene Biddle of Te Kura Kaupapa Maori o te Koutu. Te Mahara Swanson-Hall of John Paul College won the senior section. All four will compete at the national Nga Manu Korero contest in September in Porirua.
Local organiser and Rotorua Boys' High School teacher Wairangi Jones said there was a noticeable decrease in the number of Maori speakers this year.
"It's been going down progressively, while the English section still remains strong.
"It is a prestigious competition, getting students to come and compete is also a challenge - you are speaking in front of young people from all of the schools, kaumatua, kuia and judges. But that's what this competition does, it gives them the ability and confidence to handle fear of speaking in public," he said.