Nannup and Augusta climbed into C-grade top four when they scored strong wins on Saturday. At Churchill Park, Nannup dismissed St Marys for 97 and then raced home with 2-98 in 28 overs, with Leigh Guthridge scoring a fine 61no.
Augusta restricted Vasse to 9-158 at Bovell Park, of which skipper Murray Gould hit 55 runs, and then replied with 7-162 from just 26 overs with Ivan Mutnica (71) leading the way.
Cowaramup encouragingly got a team on the park at Dunsborough, but lost when Andy Mahoney (64) and Dennis Hoemberg (44no) guided the home team to a nine-wicket win.
YOBS went even better with a perfect 10-wicket win over Hawks in the other game at Churchill Park, with Jack MacKinnon hitting an unbeaten 42.
RESULTS: Nannup 2-98 (27.2 overs) (L. Guthridge 61no, L. Smith 21no, K. Rogers 2-22) b St Marys 97 (30.4 overs) (D. Mistilis 26, M. Snaddon 16, L. Campbell 16, L. Wade 4-9, T. Rasmussen 2-4, E. Bresser 2-27). Dunsb. 1-118 (17.5 overs) (A. Mahoney 64, D. Hoemberg 44no) b Cowaramup 6-114 (40 overs) (J. Pes 3-7). YOBS 0-88 (J. MacKinnon 42no, S. Maitland 35no) b Hawks 85 (28.5 overs) (D. Weston 23, A. Brown 17, D. Cameron 3-29, L. Gray 2-10, R. Gianola 2-10, B. Sanford 2-24). Augusta 7-162 (26 overs) (I. Mutnica 71, T. Warnke 34, B. Gillam 30, M. Sauzier 3-46, D. Nisbett 2-39) b Vasse 9-158 (40 overs) (M. Gould 55, M. Rajaguru 17, J. Warnke 3-41).