After a lean past two seasons, the merged entity has hit form early in the season with skipper Trent I'Anson excited about what lies ahead.

The arrival of Darcy I'Anson, Eddy Ziebath and Josh Koschitzke has been pivotal.

"I think our team is capable of playing finals," Trent I'Anson said.

"It's basically up to us.

"If we play well we should be right."

After comfortably defeating Walbundrie last weekend, Brock-Burrum will front its first big test against Osborne at Burrumbuttock on Saturday.

Osborne is the only side in the competition with two wins in a rain-marred start to the season with the Perrymans and Glanvills expected to play key roles.

"It should be a good game," I'Anson said.

"They are always pretty strong."

Walla will start favourites against Walbundrie.

The Hoppers are coming off a big win against Rand with Joel Merkel, Mark Taylor and Tom Simmons expected to do plenty of damage with the ball.

Walbundrie will be hoping for big games from youngsters Jack Kotzur, Nathan and Hayden Wardius, Tommy Lieschke and Jake Miller.

Lockhart play host to TRYC, Henty take on Rand and Culcairn do battle with Holbrook.

The ladder after four rounds is: Osborne 18, Walla 15, Brock-Burrum 15, Henty 15, Rand 12, Lockhart 12, Holbrook 9, TRYC 9, Walbundrie 9, Culcairn 6.