Southern Inland's top four teams all take winning form into the first week of the finals.
There were no upsets in a round where the top teams were drawn to take on the bottom teams in the final round of the season.
CSU head into their clash with Waratahs looking to cement another grand final berth after a 30-5 win over Ag College.
It would be their fourth grand final in five seasons following on from last year's success.
Waratahs ran riot against Albury, scoring a 92-0 win at Conolly Rugby Complex.
Griffith also scored a big win, taking down Leeton 44-0 ahead of their elimination clash with Tumut, who took a 27-10 win over Wagga City.
Griffith score a 47-17 win over the Bullettes two weeks ago.
Both games will be played at Conolly Rugby Complex on Saturday but the times are yet to be confirmed.