The kids showed the way as a host of records were either broken or threatened on day one of round two of the McDonald's Men's NSW Premier Cricket competition, with Matthew Gilkes making a double century for UNSW.
Northern District teenager Lachlan Shaw led the youth onslaught, scoring his maiden top grade century (107) in only his second Belvidere Cup appearance to break a 49-year-old record.
At 17 years and 282 days, Shaw is the youngest batsman to reach triple figures in NDs' 95-year history, bettering the mark set by former Test opener Ian "Whiz" Davis almost five decades ago.
Davis scored 121 as an 18-year-old in 1971.
Coming in at No.6, Shaw's innings featured some lovely timing and placement in a 133-ball stay which helped his side reach 374 against Hawkesbury.
A 21-year-old record was under threat of being broken at David Phillips Field as 21-year-old keeper-batsman Matthew Gilkes plundered a brilliant double century for UNSW against Western Suburbs.
The rising Sheffield Shield and Sydney Thunder star was out for an even 200, falling just 13 runs short of the club's all-time highest score held by ex-Test opener Michael Slater since the 1999/2000 season.
Gilkes blasted 120 runs in boundaries alone - 10 sixes and 15 fours – and reached his double century at a rate of almost a run-a-ball as UNSW scored 4/368.
His innings was held up on more than one occasion as search parties were sent out to retrieve the ball from nearby Bonnie Doon golf course.
"I wasn't aware I was that near to a record," Gilkes said.
"I'm too young to remember him (Slater) batting but I've seen the highlights on TV and he looked a really good batsman.
"It would have been good to get the record but I am really happy with 200.
"I'm just looking to make consistent scores any time I get an opportunity at whatever level."
Gilkes combined with century-maker Suffan Hassan (111) for a 288-run second wicket partnership.
It was Hassan's second top grade ton and came just a week after he was out for a duck in the season opener.
Twenty-year-old Aiden Bariol notched up his first top grade century, scoring 101 for new club UTS North Sydney against Parramatta at Bon Andrews Oval.
Teammate Tom Jagot recorded his seventh First Grade hundred (149 out out) as the Bears finished the day in complete control at 8-427.
In just his second match in Sydney, former Essendon player James Seymour scored 137 for Randwick Petersham as they compiled an imposing 6-362 against Blacktown at Petersham Oval.
Teammate and NSW squad member Jason Sangha fell for 95 – the third time he's been out in the nervous 90s.
Eighteen-year-old Campbelltown-Camden all-rounder – and former Aboriginal XI representative - Brock Larance captured 5-67 as Fairfield-Liverpool were restricted to 256.
There were also five-wicket hauls for Easts' Marcus Atallah (6-49) and Hawkesbury's Mohammad Shinwari (5-74).
Easts bowled Penrith out for 207 and are 5/153 in reply.
In Second Grade, 17-year-old Northern District batsman Corey Miller struck an astonishing 262 to go to number five on the list of all-time top scores in that grade's 125-year history.
Corey Miller after scoring 262 for Northern District Second Grade