Goal shooter Carla Meelker, 18, who shot 15 goals for the team, said she had loved playing in the competition.
"It was mean scoring all of those hoops," she said.
Auckland Special Olympics volunteer and coach Fred Senior was impressed with the team's first performance.
"The Rotorua Volcanics caught my eye," he said.
"It was so neat to see them win second place in their grade."
The team must now participate in the Special Olympics Regional Basketball Games in Hamilton in November to qualify for the Special Olympics National Basketball Competition.
The Rotorua Volcanics practise every Thursday from 5.30 till 6.30 at Rotorua Girls' High School.