Rand has ended the premiership hopes of Holbrook, outplaying the home side in a low-scoring preliminary final at Holbrook.
The Pigeons have set up a wonderful chance to not only be the inaugural CAW Hume premiers, but make it seven in a row for the club.
Rand won the last six premierships in the former Brocklesby DCA and will now meet Walbundrie at Walbundrie in Saturday's grand final.
For the Brookers, it ended a fairytale of winning a premiership in the club's 150th year.
They found the experience of Rand too big of a hurdle.
Holbrook, after winning the toss and surprisingly deciding to bowl, made a great start with tight bowling and smart fielding.
At 3/19, Rand were in trouble and a missed stumping prevented the Pigeons from real strife with Will Swift making the Brookers pay.
Swift batted superbly to finish (67 no) and was involved in excellent partnerships with Brayden Lieschke (15) and brother Bryce (25 no).
Rand, after being 3/37 at the half-way mark, added 90 runs in the second half of the innings for the loss of one wicket to finish 4/127.
It ended a fairytale of winning a premiership in the club's 150th year.
Corey McCarthy, 1/11 off eight overs, Ed Edlinger (1/20) and Andrew Mackinlay (1/22) all bowled very well as the Pigeons made a great recovery.
The Brookers lost McCarthy without scoring, before Hamish Mackinlay and Hayden Wishart steadied to look well placed at 1/31 in the 11th.
However, the wickets tumbled with Wishart (16), Andrew Mackinlay (9) and Hamish Mackinlay (22) going in quick succession, along with Josh Jones (7).
A calamitous run out of Randall Taylor for 1 left Holbrook reeling at 6/67, from which they never recovered to be all out for 98.
Lewis Bowen finished up with 14, and Edlinger made 12.
Rand's bowling and fielding was excellent, with all catches taken and two run outs executed to support the superb bowling on offer.
Brayden Lieschke (3/23) took the honors.
But he had great allies in Mitch Thomas, 1-4 off six overs, and Brayden Ralston, 1/14 off eight overs.
Rand will be boosted in the grand final with the return of Mark Kreutzberger and Daniel Lieschke, who missed the win at Holbrook.
After such a promising start, Holbrook felt the big blow of leading bowlers Hamish Mackinlay and Will Heriot being unable to bowl with injury in the final two months.
Walbundrie, led by a superb century from stylish left-handed batsmen Nick Morris, defeated old rivals Walla by 10 runs in a thrilling final.
The tenacious Tigers will progress to a home grand final against near neighbors and fierce rivals Rand.
The match will be played at the Walbundrie Sportsground.
Ironically, the last Walbundrie A Grade premiership was in 1952-53 when the Tigers defeated Rand by one run at Burrumbuttock.
The Tigers last appearance in an A Grade grand final was in 1994-95 when Brocklesby defeated them after they beat Burrumbuttock in the semi final.
In a high-scoring encounter, Walbundrie held off a determined run chase from the Grasshoppers.
Almost 400 runs were scored in the match.
Walbundrie batted first and made a safe start with Morris coming to the wicket at the fall of the second wicket with score at 2/41.
Morris built his innings beautifully as he was involved in good partnerships with Blake Lieschke (21) and skipper Craig Mabon (18).
A late collapse had the Tigers stumble to 7/152, but with Morris in full control they were bowled out in the final over for 201.
Matt Linklater was excellent for Walla claiming 4/31, with good support from captain Tom Simmonds 2/29 and Joel Merkel 3/52.
Walla started poorly in the run chase losing both openers to be 2/19, before Sominns and Chris Hutchison started the recovery.
They added 35 before Hutchison went for 20. Simmons was joined by Mark Taylor and they progressed steadily until both fell in quick succession.
Simmons was well caught by Morris for an excellent (56) off Jake Thomas bowling, who also removed Taylor for 8.
At 5/102, Walla looked gone for all money, but some gritty defiant batting from Joel Carter (37) and Merkel (28) game the Hoppers a glimmer of hope.
The guile of Roy Elliot stood up for Walbundrie with his three wickets putting an end to the Hoppers hopes as they finished at 9/191.
In B Grade, the grand final will be played at Holbrook when the undefeated Brookers take on Osborne.
Holbrook defeated Walbundrie by 66 runs at Billabong HS, while Osborne defeated Oaklands by five wickets in a high-scoring encounter at Osborne.