Both sides are yet to drop a match in the opening two rounds of the pre-season competition.

Colac made last year's Netball Geelong grand final but went down to South Barwon.

While the Bottlegreens and Tigers are trying to keep their winning streaks intact, Koroit and Warrnambool FNC - which are both made up of Hampden league players - are aiming for their first victory.

Blues coach Stacey O'Sullivan wasn't too fazed that her side was winless.

"We've had a good crack but we've had players missing both weeks," she said.

"We don't have a lot of versatility in our side which really hurts when you're missing people.

"Everyone's getting a good workout though so overall we're happy enough."

While the Blues missed goaler Sarah Hearn in the opening round, both their centres - Liz Byrne and Jacqui Bowman - were unavailable last week.

"I think we'll have our full team back (tonight), which should be good," O'Sullivan said.

"We know most of the girls in the Koroit side, we just don't know how they will combine.

"Hopefully we can have a win."

In the other open match tonight, Warrnambool and District Football Netball League (WDFNL) and Colac and District clash.

While reigning premier Colac and District is looking to bounce back from its 15-goal loss against the Tigers, WDFNL is aiming for successive victories after edging out the Saints by a goal last week.

In tonight's 17 and under, Warrnambool City and Hamilton duel while Colac and District and Colac FNC will battle it out.

South Warrnambool comes up against Warrnambool FNC while WDFNL is after its maiden win when it takes on Hampden.