He and Kaimoana also denied joint charges of aggravated robbery.
The teen and Paki also pleaded not guilty to unlawful possession of an offensive weapon in a public place.
Eight of the defendants elected trial by jury.
Kaimoana had not decided whether he wanted a judge-alone trial or a jury trial.
A 10th defendant - Te Koikoi Brown, 25, from Bethlehem - did not enter pleas to his four charges: rioting, wounding with intent to cause grievous bodily harm, aggravated robbery and possession of an offensive weapon in public.
The latter charge related to an allegation Brown had knuckle dusters in his possession on June 21.
Brown was given more time by Judge Paul Mabey KC to enter his pleas after his lawyer, Peter Attwood, confirmed he had not yet received full disclosure from the police.
Brown’s next court appearance would be on August 3.
Case review hearings for other defendants will be held on September 15.
Three other Tauranga men have also been charged with rioting and wounding offences stemming from the same incident, one of them is due to appear in the Tauranga District Court on July 20.