Two centurions in the one family on the same day, another batsman who reached his maiden ton after a four-year wait and a veteran spinner pushing the age barrier highlighted a gripping day's play as round two of the McDonald's Men's NSW Premier Cricket competition wrapped up on Saturday.

Bankstown opener Nick Carruthers tamed a Sutherland attack containing NSW Blues squad member Ben Dwarshuis, reaching 112 from just 111 balls to steer the Bulldogs to a two-wicket win.

His brisk innings featured three sixes and 13 fours and included a 143-run opening partnership with Zeeshaan Ahmed.

It was Carruthers' fourth First Grade century.

But if he thought he was going to be the sole focus of family celebrations, he was quickly met with the news he wasn't the only batsmen in his clan to "ton up".

Brother Mitchell scored 127 not out for Campbelltown-Camden's second grade side against Fairfield-Liverpool to share some of the limelight.

In 73 innings for North Sydney and Blacktown across four seasons, James Newton had reached 50 on nine occasions but never kicked on to triple figures.

That changed on Saturday when, in his first game of the season, the Blacktown middle order batsman reached 123 in a losing cause against Randwick Petersham at Petersham Oval.

Other batsmen to reach notable milestones were Wests' Nick Cutler (fifth century), Sydney's Beau McClintock (third century) and Gordon's Tym Crawford (4000 career runs).

Over at co-competition leaders Manly, former NSW and Australian spinner Steve O'Keefe collected his fifth five-wicket haul in Premier Cricket as the Waratahs routed winless St George.

O’Keefe took the last six wickets to fall as the Dragons were bowled out for just 165 in reply to Manly's 383.

The 35-year-old, who will play in BBL10 for the Sydney Sixers but has retired from First Class cricket, is determined to push on into his late 30s and possibly beyond.

"Yeah, why not? I'm still enjoying it as much as ever," O'Keefe said.

"The ball is coming out as good as ever. It would be a waste if I gave everything away.

"There is plenty left in the tank and I'm as competitive as ever. I could go on for years if I'm still enjoying it."

Spin bowling all-rounder Arjun Nair celebrated his 100th First Grade match in style, picking up 4-56 to go with his 61 as Fairfield-Liverpool held on for a tense 12-run win over Campbelltown-Camden.

Manly and Bankstown share the competition lead after two rounds of Premier Cricket.

Meanwhile in second grade action, Mosman's Matt Moran recorded his second lower grade double century as the Whales batted Sydney out of the game at Allan Border Oval.

Moran's 202 not out comes four years after he reached the same total in a third grade game and a year after he scored 181 for Sydney Uni thirds against Mosman.

Matt Moran on the way to a second grade double century for Mosman. Photo: Bernie Smith

For all the scores click here