Speaking with the Rotorua Daily Post, Thompson said she could think of only one other time the tournament had been cancelled since its inception in 1933.
"It was cancelled in 1945 due to the war and there may have been one other occasion where it had to be cancelled due to a flu epidemic, but certainly not in recent years.
"It was a hard decision for us to make but it was unanimous. Netball New Zealand has cancelled all its tournaments so we figured if they did, we should too."
Thompson said a message had been sent to each of the individual teams and Netball Rotorua had received positive feedback.
"Everybody understands and feels we have made the right decision.
"We were worried that if we cancelled this year, teams may not want to come back next year but everyone has said they would be back which is reassuring."
Despite the tournament no longer going ahead, Thompson said the organisation was hopeful to start a local netball season in July.
She said Netball Rotorua expected to get a directive from Netball New Zealand about running local netball on May 11.