Koonibba maintained its hold of first position in A grade Far West football with a 90-point thrashing of Ceduna on Saturday.
The Roosters did not let the Mortlock Shield break slow them down in recording the 19-16 (130) to 5-10 (40) victory, their seventh of the season.
Troy Newchurch was at his best in front of goal as he booted six, while Jesse Lennon added five goals.
The margin was 16 points at quarter-time, with the Roosters then kicking clear in the second quarter to lead by 46 at the main break.
Ceduna paid for their inaccuracy in front of goal as it registered only seven behinds in the first half, while Koonibba added 4-7 in the second quarter.
Any chance of a Blues comeback after the interval was snuffed by two Koonibba goals to start the third quarter and while Ceduna did finally get two through the centre, they paid for inaccuracies in attack.
The Blues went into the last break at 2-9, while five goals showed Koonibba was in no mood to let up.
A further seven goals to three in the final quarter blew the score out.
Western United smashed Thevenard 21-21 (147) to 5-1 (31) as they aimed to keep pace with Koonibba.
The damage was again done in the second quarter as the Tigers turned their quarter-time lead of 17 points into a 65-point margin by half-time.
Thevenard was kept scoreless in the second as the home side piled on seven goals.
Western United helped itself to four goals in the third quarter and a further 6-6 in the fourth to win by a commanding 116 points.
Tom Woods grabbed seven of the goals, while Jarden Stoetzer, Broadie Chandler and Rohan Scott scored three goals apiece.
Cain Perry picked up two of the Magpies’ five goals.
Koonibba also showed their dominance in the B grade as they defeated Ceduna 14-16 (100) to 5-1 (31).
The Roosters led by 10 points at quarter-time and added to the margin with three goals to one after the break.
The home side broke clear in the third term with 5-5 to the Blues’ one goal to lead by 55 points and it completed the victory with further goals in the fourth to win by 69 points.
Tyron Winfield led with four goals, in addition to three each from Shaun Betts and Anthony Miller.
Michael Pearce grabbed three for Ceduna.
Western United won a tight match against Thevenard by just 11 points.
It was a low scoring affair with only nine goals throughout, finishing 5-8 (38) to 4-3 (27).
Thevenard kicked the only goal of the first quarter to lead but did not add any points in the second to trail by three at half-time.
Two goals to one gave the Tigers breathing space before the teams added two each in the fourth quarter.
Westies’ Kieron Warmington was the only player to score multiple goals.