An upset was brewing at half-time with the Lakers' nine first-half goals putting them 15 points ahead at the long break.

Whatever Harrow-Balmoral coach Brent Penny said at half-time appeared to give the Roos a spark, as they kicked 18 second-half goals.

Taylors Lake coach Deek Roberts said his side's second-half capitulation was disappointing.

"It was two different games really," he said.

"We didn't fire a shot in the second half and we were fantastic in the first."

Roberts said the Roos did not allow Taylors Lake to play in its favoured style, which focused on running and kicking. "They came out more physical, which is their style," he said.

"Our effort dropped off.

"We were second to the footy and we didn't follow our men."

Michael Phelan, Dalton Burns and Peter Staude were all among Harrow-Balmoral's best players. The Roos has 12 individual goal-kickers, showing their versatility up forward.

Roberts said the Lakers could beat sides in finals contention if they worked on the mental side of their game.

"It shows we can go with sides for a half or for three quarters," he said.

"It's all upstairs when we're switched on we can match it with any team."