Hugh's been playing first grade for Cavaliers for several years, and notched his maiden ton and highest top flight score of 132 for Western Zone's under 18 side in November last year.

Stu is a legend of the same club and has pummelled runs in the Bathurst Orange Inter District Cricket competition, and when the two split in the Orange District Cricket Association.

His top score is a swashbuckling 172, but as of Sunday is no longer the highest score in the Middleton family.

Toby, at just 12, passed both of them in Bathurst on Sunday while playing for Orange in the Mitchell Cricket Council competition.

The youngest Middleton has well passed them both, scoring a mammoth, colossal, absurd 217 not out.

"I just can't believe I scored it," he said after the knock.

Middleton's previous high score was 63 for Mitchell, and it's safe to say he blew it out of the water.

It was the bulk of his side's final total of 4-354, but while he said he was a bit nervous on the verge of his hundred, his main focus was beating his older brother.

He nearly didn't get there, with Ollie Brincat run out going for what would have been his hundredth run, and then nerves settling in as drinks were called at Learmonth Park.

But he did. Middleton raised the bat and kept going on the quest to double up.

With mum Alison on the sidelines keeping Hugh in the loop through text messages, the older Middleton cricketer could hardly believe he was being overtaken, with the text exchange a rapid fire of questions.

"No, that can't be right, what's the team on now? Is he out? Is he going to beat my score?"

"What's your score?" Alison responded to the last one.

"132."

"He's on 134."

"Noooo!"

Father Stu, who coached the side, was more philosophical.

"Records are made to be broken and I'm glad I got to see it," he said.

Taj Jordan had scored 31 with him at the top of the order before Brincat made 12, but with Hayden Griffith (54) put on a 164-run stand to see him to 200, at which he emulated Marcus Stoinis' Big Bash celebration of his hundred.

He'd watched that game with billets from New Zealand during the Western NSW Junior Cricket Carnivals who'd stayed at his house, and they'd said the next person to make a big score should echo Stoinis. So he did.

"I just put the helmet on the bat and raised it," Middleton said.

Griffith dominated with ball in hand, too, taking 5-9 from eight overs as Blue Mountains was dismissed for just 97 to finish a dominant win for the under-12s side.

Middleton was in the field for long enough to take a catch but didn't last too much longer as he admitted he was "pretty tired" after batting for 40 overs, coming off about the 30^th over.

On the other field at Leamonth Park, Orange's under 14s dismissed Blue Mountains for 82 in the 34^th over, with Max Richards taking 3-5 from five overs, Johnty French 2-10 and Jamie Anderson 2-14.

The run chase lasted 20 overs, with James Harper hitting 42 and Will Rodwell scoring an unbeaten 30 to guide the side to a nine wicket win, meaning both junior sides will be in the grand finals.

A Henry Hornwood ton meant the under 16s Blue Moutains side did have a happy result on Sunday, with the opener blasting 20 fours on his way to 142 to set Orange 220 to win despite a four-wicket haul to Orange's Sam Gee.

The visitors could only manage 141 in reply as Jim Schoeler-Jones and Oliver Freeman both took three wickets.