Champions were crowned in Perth on the weekend and Sydney's grand finalists were decided.
FORTESCUE PREMIER GRADE
Thirteen points from Force skipper Ian Prior helped Associates take out the FMG Premiership grand final on Sunday.
'Soaks' were trailing 10-9 at the break but piled on 14 unanswered second-half points to take the win over Kalamunda and the 2018 title.
Tries from Will Godwin and Robert Ingram were complemented by Prior's two conversions and three penalties to help them take the trophy.
John Tuitavaki scored the sole try for Kalamunda in the clash.
Associates 23 - Kalamunda 10
Wanneroo took out the Championship final in Perth, beating Palmyra 30-20.
Trailing 20-11 at the break, Wanneroo stormed home to take the 2018 crown.
Palmyra's Christopher Miller had a hat-trick, contributing 15 of his side's 20 points in the decider.
New Force recruit Jack McGregor notched five points off the boot to keep his side's score ticking over.
Wanneroo were steered around the park by Force flyhalf Andrew Deegan, playing alongside Force squad second rower Leon Power.
Wanneroo Districts 30 - Palmyra 20
It will be Sydney Uni and Warringah in the 2018 Shute Shield final this Saturday.
Uni cruised to a 41-3 win over Manly in their semi-final, with tries from Brad Wilkin and Lochie Swinton among the Students' six unanswered five-pointers.
Waratahs halfback Jake Gordon, tighthead Paddy Ryan and Wilkin were among the Waratahs in the side, with prop Hary Johnson-Holmes coming off the bench.
NSW's Will Miller, Irae Simone, Cam Clark and JP Sauni were in the Norths side that fell agonisingly short of Warringah in Sunday's semi.
The Rats are through to the final for the second consecutive year after winning an emotional title in 2017.
Sydney Uni 41 -Manly 3
Norths 22 - Warringah 25