Marist reclaimed top spot on the Bunbury and Districts Cricket Association's Women's ladder with a comfortable win over Eaton on Friday evening.
Following the quick dismissal of Eaton's Monike Fitt (3), fellow opener Kristylee Martin notched up eight runs off 28 balls.
After running out Jody Kent for a duck, Marist's Jessica Barton (3/9 off four overs) caught and bowled Patricia Wilson for one.
Jenna Harrington (22 not out, including two fours), Michelle Johnson (17no), and Tanya Sims (8 off 12) all impressed for the visitors at Forrest Park.
The side went on to make 6/79 from 20 overs.
Marine Wood (1/14 off two overs) celebrated after bowling Blues' opener Mikayla Logue for a golden duck.
Fellow opener Katie Ernst (11 off 20) got the home side back on track, before Rebecca Clemons hit 21no (including five fours) off just 10 balls.
Thanks to Ally Clarke-Dehring (23no) and Gabrielle House (20no), Marist reached Eaton's total with 10 overs to spare.
Third-placed Colts did enough to claim a six-run victory over Leschenault on Sunday morning.
Rebecca Masiero (30no off 26, including six fours) and Suanne Morgan (18 off 28) formed a solid partnership, before Colts suffered a lower order collapse.
Chasing Colts' 5/126, the Green Caps made 4/120 from their 30 overs.
Teams will return for Round Six on December 15.