Captain Brendon Jones believes Peel can draw on last Saturday's upset win against Subiaco for their last game of the season against East Fremantle at Bendigo Bank Stadium tomorrow.
The Thunder, with skipper Jones leading the charge, finished full of running to beat the Lions by 52 points at their home ground.
Coming off a bye, Peel bore little resemblance to the side which had lost its previous three matches, against West Perth, Swan Districts and Claremont, by an average of 93 points.
Jones, a veteran of 157 WAFL games with Perth and Peel, said the win against Subiaco was a turning point which the club could build on.
"The theme against Subi was just pressure all day and it was great to get a win," Jones said.
"It has been a disappointing season so it's great to finish off on a good note and hopefully we carry on next week and have another win.
"It was pleasing to win on the home ground, which we haven't done all year, and a good result for the club and the fans."
Jones said the emergence of Eddie Dann and Rhett Mason, two of the Thunder's best against the Lions, also was encouraging.
"The younger guys were good against Subi," he said. "Players like Rhett Mason and Eddie Dann have put pressure on themselves to take the next step.
"They have got a bit of league footy under their belt and next year hopefully they can take another step forward and we start to get a really good group of young guys coming through that can help the club."
Jones said another talented Peel player, teenage defender Kamdyn McIntosh, was likely to be lost to the club.
"I think we will definitely lose Kamdyn McIntosh in the (AFL) draft," Jones said.
"He's come on in leaps and bounds since he started playing league footy, which is good for him."
Jones said the in-form Sharks would be tough to beat.
"Obviously East Fremantle are in red-hot form," he said.
"They will come down (to Mandurah) confident but we will go in confident as well."