Tomorrow's round three contest pits the Blues (fourth) against the fifth-placed reigning premier.
After a fortnight of GMC one-day cricket action, the sides are 1-1 and tomorrow's match at Rochester's Windridge Oval is certain to be a factor after Christmas.
Last year's premier is hoping to bounce back from a disappointing three-wicket loss to Moama, while Tongala saluted against Echuca South by seven wickets in round two.
Tongala's Daniel Coombs was a standout in the win against South, picking up 3-25 with the ball and whacking 32 with the willow.
Coombs' teammate Adam Nunn (40 not out) was another star in that victory, while skipper Darin Ohlsen has been consistent as usual.
Elsewhere, Kyabram Fire Brigade looks set to continue its winning ways when it travels to take on winless Echuca.
Sitting second on the ladder, the Flames are playing like contenders, with 422 runs scored (highest in the competition) from their two matches.
Recruit Brenton Campbell played his first match for the Flames in round two and blasted 56 off 90 deliveries.
The former Undera all-rounder's debut in the competition was the ideal start to filling run-scoring machine Paul Newman's void.
Meanwhile, it is an encounter between first and third when Cooma heads across the Murray River to butt heads with Moama.
Cooma's Steve Barrett hit an impressive 83 not out to guide the Two Blues to victory against Echuca last round.
That half-century was Barrett's second in as many games and the wicketkeeper will again be front and centre tomorrow.
Moama enters this clash off a gritty three-wicket win against Rochester.
Jordan McGregor will lead the way again after he starred with bat and ball in hand, picking up 2-13 and making 46 in the chase.
Lastly, Echuca South hosts fellow winless outfit Bamawm-Lockington United.