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The NNA Tri-Series competition commenced in 2020 with 8 clubs each fielding a team in each of the following grades:

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• Championship 

• Opens

• 23s

 

​The competition runs side-by-side with the Newcastle Netball Association Winter Season competition with a set of guidelines describing the differences from the rules governing the standard competition.

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2020 winners 

GBS Championships - University of Newcastle

GBS Opens - W/L Balance 2

GBS 23s - Souths Pride

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2021 winners 

GBS Championship - Souths Lions

GBS Opens - W/L Balance 2

GBS 23s - Junction Splice

 

2022 winners 

GBS Championship - W/L Balance 1

GBS Opens - Souths Roar

GBS 23s - W/L Balance 3

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2023 winners

GBS Championship - W/L Balance 1

GBS Opens - University of Newcastle 

GBS 23s - W/L Balance 3