Chalambar moved clear atop the GCA B Grade ladder after Rhymney-Moyston suffered its first loss of the season on Saturday.
Pomonal took to the field for its first B Grade game of the season after three consecutive forfeits to start the season but could not get over the top of Swifts-Great Western.
The Gappers recorded back-to-back wins, narrowly edging out Youth Club while Buangor found form once again to defeat St Andrews.
Rhymney-Moyston 9-103 (40 overs) def by Willaura 4-120 (24 overs)
RM: T Quick 25* Will: E Bryce 85*
St Andrews 140 all out (34.1 overs) def by Buangor 5-145 (34.3 overs)
SA: L Arnott 41* Buan: N McRoberts 3-25, R Weppner 25, D Dyer 26, J Ganley 57
Chalambar 7-170 (40 overs) def Wickliffe-Lake Bolac 102 all out (38 overs)
Chal: W Cooper 31, R Kettle 33, E McKinnis 3-14 WLB: R Thatcher 3-34, L Blake 27
Halls Gap 4-138 (33 overs) def Youth Club 6-135 (40 overs)
HG: J Reid 52, S Mantell 71
Pomonal 102 all out ( 35.2 overs) def by Swifts-Great Western 2-109 (26 overs)
Pom: L Roberts 38 SGW: T Fitzgerald 5-10, G Ranton 53*