ACT voters will head to the polls on today, with Labor widely expected to be returned to power for an historic fourth consecutive term.
Betting markets were so sure the government would rack up another win, one bookmaker decided to pay out on Friday.
Sportsbet spokesman Shaun Anderson said his punters might as well enjoy their winnings a day early after Labor's odds to win firmed from $1.50 to $1.04 and support for the Liberals moved from $3.50 to $5.50.
Mr Anderson said 99 per cent of all bets Sportsbet took on the election had gone on Labor.
Labor appears set to keep its seven seats, leaving the Liberals with six in 17-member Legislative Assembly.
The ACT Greens emerged as kingmakers at the last election and are expected to continue in that role by retaining their four seats in this weekend's election.
Chief Minister Katy Gallagher's government has come under fire from the Liberal opposition for being 'in coalition' with the Greens.
But Ms Gallagher says there have been plenty of times in the Legislative Assembly over the last term when the two parties disagreed.
Liberal leader Zed Seselja says territorians are disappointed with the Greens and ruled out offering them a ministry - unlike in 2008, when he put up both the deputy chief ministership and another ministry as incentives for their support.
Greens leader Meredith Hunter has told both sides her party is ready to negotiate, whatever the outcome.