Yorkshire Academy beat Scarborough by nine wickets in the Yorkshire Premier League Cup final at Weetwood.
Scarborough lost the toss and struggled to 157-9 before the Academy made 160-1, with Alex Lees 90 not out.
Yorkshire's director of cricket operations Ian Dews told BBC Radio York: "These guys have come a very long way in the last three or four months."
Scarborough skipper Piet Rinke said: "It was a big toss to win, but it isn't an excuse, we didn't bat well enough."
Mark Tennant and Kunwar Bansil both made 31 for Scarborough, while Ben Coad took 3-17.
"The ball was moving around a lot this morning," Rinke added, "it was definitely more difficult batting first.
"We didn't manage to get enough runs on the board to put any pressure on them. Credit to them and well done to the young kid."
The young kid in question, Alex Lees, rounded off a superb week with 90 not out to guide his side to victory.
Lees made 12 not out in his CB40 Yorkshire debut on the previous Monday, and made 91 in Saturday's Yorkshire League win over Castleford.
"Hopefully, as young Alex Lees has shown, he's ready to play first-team," Dews added. "It shows we've got talent below."
Dews has a Yorkshire League background, as he skippered York for six years in the 1990s before joining the Yorkshire staff.
"I know it's been a tough year up at the top for the first team, but there's a bit of light here from these young lads," he added.