Danum Eagles - who will enter the men’s National League next season - are celebrating winning the Under 18 North East Conference.
Eagles defeated second placed Killamarsh Arrows 88-47 on Sunday to seal the league title.
The Doncaster youngsters remain unbeaten this season, with 13 wins out of 13 to their credit, and will have home advantage in the forthcoming play-offs.
George Darling and Sam Speight led Eagles’ scoring against the Arrows with 21 and 23 points respectively.
Eagles head coach Bob Martin said: “We are proud of what we have done so far but have bigger ideas before we’re done.”
On the performance against Killamarsh, he added: “Our new signing Andreas Corusi made an unreal first game impact.
“His speed and passing skill took the Eagles to a level they have not been at before.
“But the team performance was what was so pleasing. Every player saw action and all had a positive impact.”
Eagles bring the curtain down on their regular season QE York Knights on Sunday.
The heartbeat of the young title-winning team are likely to form the backbone of Eagles’ new National League senior side later this year. The club are expected to enrol in Division Two.