New South Wales have produced an unforgettable last-gasp stunner to steal Game 3 and the entire 2019 State of Origin series in the most dramatic of circumstances.

ANZ Stadium went ballistic after star fullback James Tedesco scored a match-winning try in the 26-20 New South Wales victory, after a rollercoaster solo run with just 20 seconds to play to stop the game going into extra-time.

After a Blake Ferguson run down the sidelines, Tedesco beat the final two defenders with a stunning run to the corner that sealed the series for the Blues.

Just 30 seconds earlier, Queensland captain Daly Cherry-Evans was lining up to attempt a field goal, that he was never able to kick because of how quickly the Blues hot off their defensive line.

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The match had looked certain to go to golden point with New South Wales needing to go 90m to score with their final set of the match.

But that's when Tedesco popped up and cemented his spot as one of the biggest superstars in rugby league with his run is now certain to be written into State of Origin folklore.

It ended the most incredible deciders in recent memory after Queensland had produced a monumental fightback to tie the game at 20-20 with two late tries of their own.

Just as the game looked certain to head into golden point, Tedesco stood up and produced a historic highlight.

The Roosters star was announced player of the series after full time and was awarded the Wally Lewis Medal.

The incredible result ended the Blues' 14-year wait for back-to-back series wins.

It also snapped the Blues' seven-match losing streak in Origin deciders.

On a night of absolute drama, the result also handed Mitchell Pearce his first ever Origin series win after playing 19 matches.

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New South Wales 26 (James Tedesco 2, Paul Vaughn, Damian Cook tries; Maloney 4 cons, pen)

Queensland 20 (Felise Kaufusi, Josh McGuire, Josh Papalii tries; Ethan Lowe 3 cons, pen)

HT: 8-8