PERTH found themselves in the field in all four grades on day 1 of the round 12 fixture against Claremont-Nedlands.
A victory in First Grade could see Perth reach the top six for the first time this season.
Jake Van Galen (3-50) was the pick of the bowlers with a long and tight first spell and the Josh Nicholas run-out of key batsman Jacob Whiteaker was a highlight as Claremont-Nedlands finished with 192 at Fletcher Park.
With 23 overs left in the day, Perth openers Jacob Snadden and Nicholas came out with positive intent.
Snadden blasted 12 boundaries and a six as he finished the day unbeaten on 71 and swung the match for the Demons, now in a position to secure first-innings points at 2-121.
Over at Cresswell Park in the Second Grade, Perth kept a tight leash on the Tigers as they ground out 8-193.
To round out a good day at Fletcher Park, where no Tiger batsman passed 50, the Demons dismissed them for 211 in Third Grade.
Cooper Carrington picked up 4-34, while Brad Garland and Joel Curtis made the perfect start in reply, and at stumps Perth was 0-79.
Fourth Grade need 179 to win with nine wickets in hand.
In the under-17’s Tyler Woodhouse had an outstanding game.
His 55 n.o. has helped Perth to 0-77 after earlier taking four wickets as Claremont-Nedlands was all out for 68.