The Roos are 1-0 after defeating Maryborough by 48 points last week.

The club hasn't made a 2-0 start to a season since 2001 when - in what could prove an omen - the Roos defeated Maryborough and Castlemaine in their opening two games.

With the key theme this year at Kangaroo Flat improvement, a victory over the Magpies would already equal the Roos' tally of two wins last season.

And further on the theme of improvement, a Kangaroo Flat victory would come against a side the Roos lost to twice last year.

"Castlemaine beat us both times last year, so if we're going to show we've improved, we need to step up and win this game," Kangaroo Flat coach Jason Stevens said on Friday.

"We respect Castlemaine, and particularly at home they are a very dangerous outfit, so it's going to be a tough contest."

Among the highlights for the Roos in their win over Maryborough last week was their new-look forward line firing under lights, with the side booting 18 goals, including 11 between recruits Braydan Knox (seven) and Cameron Rinaldi (four).

Saturday's game at Camp Reserve starts at 2.20pm.