"We are not as good as we think." That was the realisation Central Coast Rays players came to following their round-four loss to Perth. They haven't been beaten since.

Rays coach John McKee revealed that his team faced some home truths when they closely examined their performance after being defeated by the Spirit 31-19 one month ago. The frank discussions led to a three-match winning streak that has lifted them to second on the ARC ladder.

Heading into the final-round clash against rivals Sydney Fleet tomorrow, McKee is confident they can secure a home semi-final. It's a prospect that seemed highly unlikely halfway through the season, when the Rays languished near the bottom of the table.

"After that loss to Perth, we had a talk about things. Maybe some of them thought they were better than they were, thought it would be a bit easier, whereas there were no easy games," McKee said.

"We said at that point that if we are able to turn things around, we could still achieve what we wanted to. The important thing to say was, 'Today was not good enough' … Everyone had to push themselves harder to get things right."

And they have, becoming the form team of the competition after defeating Melbourne and Canberra in the past fortnight.

Fleet coach Col Jeffs knows the clash at Bluetongue Stadium is "do or die". Fleet sit in fourth place on 20 points, level with Melbourne, who are fifth on points differential. Canberra are sixth on 19 points.

Melbourne and the Vikings play this weekend, so the winner can overtake Fleet for a finals spot unless Jeffs's side wins. "The best of Fleet hasn't come yet - I am hoping this weekend we might see it," Jeffs said.

"I reckon the best we have come is 70-80 per cent, I think we've got a lot to offer as a unit."

First-placed Western Sydney Rams host Perth at Parramatta Stadium tonight (7.30pm kick-off) and need only one point to secure the minor premiership.