Third grade joined them on the winners list.
Aimee White became the first female to represent the Mariners at men’s WACA grade level, when she stepped out at Hillcrest Reserve in fourth grade.
The Mariners bowled first and while Bayswater maintained wickets through their innings, they could not shake the efforts of a restricting bowling line-up.
Aidan Andrews bowled his 10 overs straight out, with three maidens for figures of 1/22.
Craig Simmons (4/33) wiled away with his left arm off spin and trapped all four of his Bayswater Bears victims.
They either were bowled or leg before, which kept a lid on things.
Brendon Diamanti went for less than three runs per over for his full allotment and the Mariners were pleased to hold Bayswater-Morley to 7/195.
Brayden Sutton gave the Mariners the start they were looking for to get ahead of the game.
The tough opener made a promising start to the 2013/14 season by making 43 on Saturday.
‘We went for more of a cautious start and tried to get safely through (Western Warriors bowler Nathan) Rimmington’s overs,’ he said.
‘From there we figured we could build it up off the other bowling.’
He combined with Warrior Sam Whiteman to push the Mariners beyond 100 and set up the win.
Whiteman showed why his reputation continues to rise in Australian cricket circles by peeling off a polished 60, in what may be a rare appearance in maroon this season.
The win, with three overs remaining, builds the first block into the season with the next four fixtures before Christmas being two-day affairs.
Third grade are running hot and they cemented a spot near the top of the table, for the time being, with another victory.
The side is undefeated to date, with just the washout from the Gosnells match last week ruining a perfect October.
White was involved in a thriller for her debut in fourths with Rockingham-Mandurah making 156 courtesy of contributions from Nathan Anderson (37), Matthew Edwards (28) and Daniel Lambert (25).
Guy Lewis blasted out the middle order of the Bears, his 4/24 leaving them 9/117.
Remarkably, the last wicket stand of Bayswater-Morley was the biggest of the game as the home side saw off Rockingham-Mandurah in a nerve-jangling ending.
In a busy weekend for White, she blasted 35 off 20 balls but had little help with the bat as the Mariners were bundled out for 57 in the female B Grade game against Melville.
Mel Saunders struck for 2/10, following her impressive three wickets last week but the total was never going to be enough to defend as Melville got home with five wickets and overs to spare.
The juniors bowling department made a mess of Bayswater-Morley to post Under 15s and 17s wins.
Leon Coombs grabbed the best ever figures of an Under 17 Mariner to take 7/22 and wreck the Bears for 56.
Danial Sudden (5/12) took his first five wicket haul for the Mariners to snuff out Bayswater for 82 which the under 15s overhauled with six wickets in hand.
Second grade made 204, but Bayswater smoked their way past that, just two wickets down in the 38th over to leave the side near the foot of the table.
Claremont-Nedlands await the seniors, under 15s and 17s this weekend.
The female team meet Joondalup, while the Under 13s and 14s play a road double against Willetton.