The TAB has installed Penrith as favourites for the NRL Grand Final at Suncorp Stadium next weekend.
The Panthers have opened at $1.60 with South Sydney $2.40 outsiders with TAB.
Penrith and Souths started the season as joint $5.50 Premiership favourites with the Panthers the best backed team to win the title all season.
They held 29 per cent of the Premiership market going into the weekend from Melbourne with 28 per cent and the Rabbitohs 13 per cent.
Melbourne had close to 90 percent of the Head-to-Head hold for the Grand Final qualifier against Penrith with several large bets, including one of $65,000 at $1.33 before kick-off.
Penrith had drifted significantly in Premiership betting in recent weeks but will now go into the season decider as favourites.
It will be Penrith’s fifth Grand Final and their second in a row, after losing to the Storm last year.