The Collie Eagles Football Club Juniors Year 8 team has taken out this year's grand final.
The Year 8 team played a hard-fought game to defeat Dunsborough 4.5.(29) to 1.7.(13) on Saturday, September 17.
The side beat Harvey 8.5 (53) to 3.5 (23) to advance to the premiership decider.
Team clinched the minor premiership earlier this year, securing top spot on the ladder with 48 points after Round 14.
The side rounded out the season with 12 wins and two losses.
Jack Rinder finished second on the league's goal-kicking ladder on 22 followed by Josh West in third place on 21.
Collie Junior Eagles Football Club registrar Aaron Worlley said the club expected the Year 7 and 8 teams to perform admirably.
"We knew they would be more than competitive, mainly because they had good, strong numbers," he said.
Mr Worlley said the team has played consistently throughout the season and finals.
He said coach Craig Rinder brought his level of experience to the side.
"He played WAFL Football, he played for West Perth I believe, so his knowledge of the game is really good and I think that the kids, especially in Year 8 are now getting to the age where they can be given different sorts of instructions that they can learn the game a bit better," he said.
"I think his overall football knowledge definitely helped and, like Peter [Bellden], he is a good communicator with them."
Mr Rinder said this year's Year 8 team was formed out of 2015's two Year 7 teams.
He said the team has performed courageously throughout the season.
"This year, I coached them last year so I knew I had a good base of kids there, and, because they're teenagers and they're turning into young men, it was going to be a little bit of a hard task but they have taken everything on board and their skills have improved that much over the year I was bit surprised my self so that side of it was very pleasing," he said.
"The other thing is it's not just about football it's about teaching them a few life skills and that sort of stuff as well as they're growing up into young men so to talk to other people and coaches and stuff, so I have been very happy with their development over the season and not surprised at all the boys have made it this far so it's been a great season for them."
Mr Rinder said the training sessions revolved around structures, giving each player a specific role on the field and helping them hone their skills.