Ngongotaha led from the first round of fours when it won both of their games and was never headed throughout the tournament. After two rounds of pairs Ngongotaha led with 24 points followed by Owhata 16, Westbrook and Rotorua Club 8 and RSA 4.
Two rounds of singles saw Ngongotaha ahead with 33, Owhata 28, Westbrook 19, Rotorua Club 13 and RSA 7.
In the final round of fours Ngongotaha won one game to clinch the title with 37 points followed by Owhata 34, Westbrook 23, Rotorua Club 19 and RSA 7.
Four points were awarded for a win in the fours, two points in the pairs and one point in the singles.
Colin Hanson and Cheryl Wiggins were the top scorers for Ngongotaha with six wins.
Bay runner-up
On Saturday Bay of Plenty finished runner-up in the Membery Trophy Development fixture at Taupo.
North Taranaki, competing for the first time in the event, won with 80 points followed by Bay of Plenty 70 with Waikato 69 and Hawke's Bay 69.
The Bay of Plenty teams were: Brian Flett, Joshua Mills, J.R. Mills, Stacey James; Keith Wray, Wayne Hitchens, Chris Guy, Pai Te Tamaki; Ron Munn, Keith Richardson, Elain Howard, Murray Harris; Tom Cook, Alan Gordon, Christine Kingi, Andrew Flett.