The fight to lock in finals spots over the last month of the Women's McDonald's Premier Cricket regular season will take on a new twist as sides go into the final month without the bulk of their representative stars.

NSW Breakers players will be seen infrequently for the rest of the season as the WNCL winds its way around the country.

Hayley Silver-Holmes (Parramatta),  Maddy Darke (Universities), Kate Peterson (Penrith), Emma Hughes (Penrith) have been released back to their respective clubs for Sunday's round of one-day matches, but the majority of clubs have waved goodbye to their big names.

Experienced women's coach Russel Grimson, whose Sydney team tops the table, believes the rep players have left behind a great blueprint for their club teammates to follow.   

"The WNCL players play an incredible role in improving the quality and expectations of sides," he said.

"They have raised the standard of those around them, through their sharing of knowledge.

"The biggest challenge will be maintaining those standards and expectations, with players needing to take hold of matches in the way players like (Rachael) Haynes, (Alyssa) Healy and (Ash) Gardner do.

"But there are so many up and coming players doing a great job across the competition, so I think you will see many of those step up and influence the finals race."

With just four rounds remaining until the finals, every match will have a bearing on the top four make-up.

The Universities-Campbelltown-Camden clash looms as round 15's most crucial encounter.

Both sides are on 35 points and need victory to keep pace with the top four

Gordon meet Parramatta in another important showdown at Chatswood Oval, while in-form Bankstown shape up against Sydney.

Third-placed St George-Sutherland is at home to Penrith.