A shrewd Parramatta fan is looking at a $100,000 pay day if busy forward Nathan Hindmarsh inspires the Eels to the club's first premiership since 1986.

A Parramatta victory over hot favourites Melbourne on Sunday would net the punter $65,000.

But another $50,000 would jump into his pocket should Hindmarsh win the Clive Churchill medal awarded to the best player on the field.

"The punter stands to have an absolute fill up if Parramatta win the grand final and Hindmarsh takes the Clive Churchill medal," Sportingbet Australia's chief executive Michael Sullivan said.

"He put $2500 on Hindmarsh and has got great odds as Hindmarsh will certainly be in contention if Parramatta win."

The punter showed great faith placing his bets well before Parramatta qualified for the grand final with their 10th win in 11 games.

He took $13 about the Eels winning and $21 about Hindmarsh being named Churchill medal winner for which he is now a popular $9 chance.

While flashy customers Billy Slater, Greg Inglis and slippery Eel Jarryd Hayne are more favoured to be named the best player on the day, Hindmarsh's massive workload and his magnificent defence rarely goes unnoticed.

Melbourne have been backed as if unbeatable during the past 24 hours but Parramatta, whose odds got out to $101, are still a blackout for bookmakers across the country facing a $12 million payout if they win.

Bets this week have been close to 10-1 for Melbourne but most big betting outlets still report Parramatta are a "horror" result.

Melbourne are into as short as $1.62 with some bookmakers while Parramatta have eased slightly with as much as $2.35 on offer.

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