Robertson will rack up 350 club games for the Bombers today - the highest amount of matches since the club has kept records.

Her milestone coincides with two crucial round 18 encounters.

While her A2 team wants a win against North Warrnambool Eagles to secure the minor premiership, the senior side - which she helps Hayley Plozza coach - needs a victory to sneak into the top five.

"We need to win and we need Terang Mortlake to go down to Koroit," she said of the latter.

"The girls are definitely fired up and ready to go.

"North will be too.

"They beat us last time so it's one each.

"This is like their grand final and this is our elimination final."

Robertson has played her entire career with Cobden.

"I first started when I was around 13," she said.

"I just filled in because they were short and I was one of the little girls hanging around at the netball."

The 34-year-old has played about 80 senior games, spending most of her time in A1.

For the past three seasons she has played A2.

She was pleased to reach her milestone against North, which is guaranteed the double chance despite today's result at Cobden.

"We always have really good games with them and there seems to be a rivalry even though they're not one of our neighbour clubs," she said.

"They're always very competitive."

Robertson is enjoying returning to her original position as a defender this season after a stint in the midcourt.

"I keep trying to tell them to put me in goals but they won't," she laughed.

"I think the last time I played there would've been in grade six."

The Bombers have two other milestones today, with cousins Sarah and Natalie Hinkley both notching up 100 games when they take to the court for A1.

In other senior matches, Warrnambool should be too strong for Port Fairy while Camperdown and South Warrnambool are both looking to build momentum ahead of finals.