The Australian wheelchair rugby team has achieved its best-ever world championship result with a silver-medal display in Vancouver.

Despite the historic effort, Australian coach Brad Dubberley lamented "errors and dumb plays" after watching his side again fall to murderball arch rivals America in the final.

Australia entered the match in slick form and looked a chance of ending America's reign as world champions but, as they've done time and time again, the United States prevailed 57-45.

It was America's fourth gold medal from five championships.

Dubberley rued an opportunity lost.

"We had such an awesome build-up to the final, but to get there and then play our worst game of the championships is so disappointing," he said.

"Obviously we were playing a great opponent in the USA, but I can't remember playing a worse game.

"We made so many errors and dumb plays."

Devastated Australian star Riley Batt quickly shifted the team's focus to the 2012 London Paralympic Games, where he hopes to exact revenge.

"We have learnt so many lessons at this tournament that are going to help us at the Paralympic Games in London," said the 21-year-old, who scored 23 goals.

"When it's all said it done, the London Paralympics is the one that matters.

"We just need to keep our heads high and train harder over the next two years.

"We're not the best, but we need to become the best and we've got a lot of work to do."

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