But the senior boys had more to prove, advancing to the grand final where they dealt fellow country side Kerang a blow in a tense penalty shoot-out.

Wednesday's win in Melbourne ensured Warrnambool College was the first country school in a decade and only the second in history to earn the title of VSSSA champion.

Co-coach Andrew Thomson said the boys' regional roots shone.

"Kerang played a country style of hockey like us," Thomson said.

"It was more one-on-one and we were a bit tougher at the ball, which I think helped us beat Melbourne High.

"The boys played out of their skins. We've always done quite well but never this well."

Warrnambool led 1-0 at half-time in the decider, courtesy of a short corner from winger Tristan Barrett and the defensive efforts of goalkeeper Tristram Finn.

Kerang were awarded a penalty flick in the dying minutes, which they converted to level the scores.

The teams were square at full-time, forcing penalty flicks. Both sides scored four each, meaning sudden death would decide the championship.

After Warrnambool converted, Tristram made a save to seal the victory.

Warrnambool College went through the day undefeated.

Steered by centre-half John Webster, it defeated Mount Waverley 2-0 in its opening match.

With stand-out defence from Tim O'Sullivan and Hamish McDonald and the quick legs of Seamus Gleeson, Warrnambool enjoyed a 2-1 victory against Melbourne High, which had won the last four championships.

It also thrashed Warragul 9-1.

The side has qualified for the nationals but Thomson said it was unlikely it would attend due to the titles being in late December.