Claremont broke a run of tight contests against Peel to record a thumping 67-point win in the WAFL colts grand final at Subiaco Oval.
The two sides had split the four earlier contests this season, with an average of just 14 points separating them.
However, the Tigers turned the trend on its head, slamming on 15 goals to two in the second half to run away with a 20.12 (132) to 9.11 (65) victory in front of a crowd of about 1000.
State representative Nathan Fyfe starred at full-forward for Claremont, booting at least one goal in each term to finish the game's top scorer with six majors.
His ability to take contested marks against highly-rated opponent Blayne Wilson was a highlight.
Claremont goalsneak Lewis Broome broke the game open in the third term, snatching the lead for his side with his second goal of the game soon after half-time.
He added a third and fourth within seven minutes of the restart to put the Tigers 16 points up and it was a procession from there on.
Peel had held a slender eight-point lead after a blistering opening term, kicking five goals to the Tigers' four, and maintained the advantage during the tighter second quarter.
Kieran Butcher, who made his league debut against Perth in round 22, tried hard all day for Peel but lacked help in the midfield.
Broome was adjudged best on ground by the judging panel, claiming the Mel Whinnen Medal for his efforts.
Claremont chief executive Todd Shimmon was delighted to see his club claim its first premiership in any grade since the reserves’ triumph in 2000.
“It’s been a long time since we’ve won a grand final,” Shimmon said. “But I think the main out of it all is that our colts have always been very strong and, since 1958 when the colts started, we’ve missed the finals six times.
“We’ve made a lot of finals and I think you’ll find that we’ve made a lot of grand finals. But to actually get one across the board with a talented group is great.
“I think a lot of these boys, maybe five or six, will go a higher level, but I think 15 or 16 will move straight into the Claremont reserves and senior football next year, which will be fantastic.”
CLAREMONT 4.2 6.5 13.8 20.12 (132)
PEEL 5.4 7.7 8.10 9.11 (65)
GOALS - CLAREMONT: Fyfe 6; Broome 5; Foley 4; Colyer, Neates, Weedon, Thomson. PEEL: Mason, O'Driscoll 2; Bennell, Payrits, Black, Luff, Gillam.
BEST - CLAREMONT: Fyfe, Neates, Davies, Colyer, Weedon, Broome. PEEL: Butcher, Bennell, McKenna, Luff, Black, Mason.
UMPIRES: Shelton, McCaw, Wardman.
CROWD: 1000 approx. at Subiaco Oval.