Rotorua Girls' High School student Te Wai Merito also represented her school in the competition.
Jack said he was pleased with the results and that "everyone did exceptionally well".
"It was a really good competition and having the impromptu section before the prepared section may have thrown some people, but I think it actually ended up working in my favour.
"All the students from Rotorua did the city proud at the competition."
Full results:
Sir Turi Kara, Junior English
First: Nikau Te Hiku, Hato Paora College
Second: Debra-Wai Henare, Te Kura Maori o Nga Tapuwae
Third: Peri Belmont, Lindisfarne College
Te Rawhiti Ihaka, Junior Maori
First: Michael Rangihau, Te Kura Kaupapa Maori o Ruamata
Second: Mareikura Nathan, St Joseph's Maori Girls' College
Third: Kaanihi Butler-Hare, Te Ara Whanui Kura Kaupapa Maori o Nga Kohanga Reo o Te Awakairangi
Best Junior Female Speaker
Mareikura Nathan, St Joseph's Maori Girls' College
Korimako, Senior English
First: Sonny Ngatai, Hato Paora College
Second: Jack Potaka, Rotorua Boys' High School
Third: Te Whati Kihi-Waikato, Te Wharekura o Rakaumangamanga
Best Impromptu
Jack Potaka from Rotorua Boys' High School
Best Prepared
Te Whati Kihi-Waikato, Te Wharekura o Rakaumangamanga
Pei Te Hurinui Jones, Senior Maori
First: Te Rangimonoa Rangihau, Western Heights High School
Second: Akuira Tiakiwai, Te Wharekura o Ruatoki and Poutoa Papali'I, Te Kura Maori o Nga Tapuwae
Third: Taane Flanagan from Te Kura Kaupapa Maori o Te Whanau Tahi
Best Impromptu
Te Rangimonoa Rangihau, Western Heights High School
Best Senior Female
Te Paea Ngapo, Nga Taiaatea Wharekura
Best Senior Male
Te Rangimonoa Rangihau, Western Heights High School
E Tipu E Rea Trophy
Te Kura Maori o Nga Tapuwae