Earlier this month, United's under-10s were crowned Plate Champions at St. George's Park.
In December, the team attended the under-10's Northern Futsal qualifier event in Sheffield, competing with Accrington Stanley, Preston North End, Bradford City, Lincoln City, Rotherham United, Oldham Athletic & Doncaster Rovers.
After finishing third, the squad qualified for the national finals, which took place at St. George's Park, meeting teams from the Midlands and Southern qualifier events.
The Blues faced Luton Town, Northampton Town, MK Dons, Cambridge United, Bolton Wanderers, Accrington Stanley and Preston North End.
After a slow start, the side finished in the bottom half of the group, qualifying them for the Plate.
A 1-0 victory over Preston North End in the semi-final, courtesy of a powerful strike from Jacob Robinson, set up a final against MK Dons.
Early goals from Lucas Wallace and Louie Pattinson gave Carlisle a two-goal lead, before being pegged back to 2-1, but United ultimately held out for the win and emerged as Plate Champions.
Speaking following the tournament, Lead Foundation Phase Coach Warren Matthews said: "The experience of these futsal events have been of real value to the under-10s group, adding to the already comprehensive games program."