Western Australia pounced on an inexperienced and confidence-sapped South Australian cricket side to canter to an eight wicket victory and leap to equal top on the ING Cup table at Adelaide Oval.

In reply to SA's sub-standard 170 all out, the Warriors scored 2-171 in just 37.5 overs, grabbing a bonus point to move to 22 points on the ladder.

They are equal with leader Queensland and have an extra game in hand.

Skipper Justin Langer said the Warriors had set out to take maximum advantage of a Redbacks' outfit which scored just 83 and 51 in its previous two games.

"South Australia are going through a tough time at the moment," Langer said.

"I felt with the side that we've got, I told the guys last night that it was important that we first win the game and then a bonus point would be excellent.

"The game really couldn't have gone more perfectly to plan."

Pace quartet Jo Angel, Paul Wilson, Callum Thorp and Brad Williams set up the game for WA, with Angel most impressive, earning man of the match honours with a tight, aggressive performance to take 3-31 from 10 overs.

Swing bowler Thorp also took three wickets, including the prize scalp of SA skipper Greg Blewett (32) to start the Redbacks' slide.

A rare moment of joy was provided for SA by wicketkeeper Graham Manou, who belted a quickfire 44 from 37 balls, including a six off Kade Harvey's bowling which struck the ING sign at long-off.

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