Mount Albert's Greens candidate says the narrow margin in the seat shows elections are no longer two-horse races.
Labour's Helen White has won on early numbers by just over 100 votes.
It's traditionally a Labour stronghold, previously held by Jacinda Ardern, David Shearer, Helen Clark - and Michael Savage.
White's blaming her slim-win on the Greens splitting the vote.
Ricardo Menendez-March says his Party's proud of its record result.
"No one, not the Greens, not National or Labour, can take any electorate for granted."
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