Rockingham-Mandurah have defeated Perth by 95-runs in the latest round of the WA Premier Cricket Competition.
The Mariners posted 6/250 after being sent in by the home side.
James Bracey top scored 77 and Dane Ugle finished 60 not out.
In response, early wickets from Joel Marion put Perth on the back foot and middle-order wickets from Ben Jacobs gave Rockingham-Mandurah the upper hand.
Skipper Craig Simmons claimed three late order scalps to bowl out the opposition in the 44th over for 155.
Next week in the last of the three week block of one-day matches with the Mariners on the road again facing Melville.