Marist cruised to a comfortable five-wicket win over Leschenault in Round Nine of the Bunbury and Districts Cricket Association's Women's competition.
Travelling to Forrest Park, the Green Caps won the toss and chose to bat first.
The visitors slumped to 5/21, following the quick dismissals of Erin Reynolds (3 runs), Shelly O'Byrne (0) Nadene O'Hara (6), Alana Harris (3), and Louise Rea (2).
Blues' bowler Jessica Barton claimed 2/4 from three overs and took two sublime catches.
A crushing lower-order collapse saw the side limp to a measly total of 8/64.
Later in the day, Marist's Rebecca Clemons (15 off 17 balls) and Gabrielle House (13 off 20) teamed up to form a stellar partnership.
Unfazed by Leschenault's bowlers, the Blues reached the visitors' total in 15.3 overs.
Second-placed Hay Park made light work of bottom-dwellers Eaton, at the Eaton Sports Ground.
Redbacks' captain Fiona Florance (29 not out off 30), Kristylee Martin (12no), and Lauren London (11no) steered the visitors to a respectable 5/136.
Eaton captain Jenna Harrington posted 27no, before Rachael Hardwicke (22) elevated the home side's chances of victory.
Redbacks' bowler Shakira Parsons went on the attack - claiming 6/11 from her five overs.
The wooden spooners were eventually dismissed for 97 with 1.3 overs to spare.
Marist secured the minor premiership with a stirring performance against Eaton in Round 10.
Batting first at the Eaton Sports Ground, Sara Naylor (20no), Clemons (20no), and Buck (19no) kept the Blues' run rate ticking over.
Chasing the visitors' 3/143, Eaton's Monike Fitt (17) and Amber King (11) fought to keep their side in the contest.
Following middle and lower-order collapses, the home side was all out for 57 with 2.4 overs remaining.
Leschenault wrapped up its season campaign with a five-wicket win over third-placed Colts, at the Bunbury Recreation Ground.
Kasey Hill (3/15 from six overs) and Brianna Young (2/19) tore through the home side's batting line-up.
Going after Colts' 7/96, Leschenault openers Rea (8no) and O'Hara (6) struggled to make an impression.
Stranded on 4/52, O'Byrne and Emma Jamieson notched up 29no (including four fours and one six) and 12 respectively.
The visitors needed 27.3 overs to reach the Fillies' total.
Hay Park qualified for the 2019/20 grand final with a decisive 24-run victory over fourth-placed Collie, on Sunday morning.
