RUGBY LEAGUE: The Wallumbilla- Surat Red Bulls will head into the first week of the finals full of confidence, but coach Justin Washington has warned against complacency.

The Red Bulls achieved an impressive 36-26 win over St George in Wallumbilla on Sunday, with the forward pack of John Frith, John Nolan and Brodie Lucht leading the charge.

The results means the same teams will front up again next week for the elimination final, with a chance to play the loser of Roma Cities and Chinchilla in the qualifying final.

Despite the result, Washington said his players switched off at key moments that allowed St George back into the contest.

"I'm still a little disappointed in some periods of the game, just a little lapse in urgency to allow them back in the game,” he said.

"They just capitalised on a lack of energy from us.

"We've got to make sure we're playing for 80 minutes next week.”

They might be fighting it out in the elimination final, but the Red Bulls are well and truly dark horses of the competition, having beaten St George twice as well as Chinchilla and Roma Cities.

Washington said they could beat anyone on their day.

"The club's really happy with our effort this season,” he said.

"We started strong but dropped off a bit, then had some good wins and stuck it to the top teams.”

The Red Bulls' under-16s side took out the minor premiership this year.