The match started nervously with a kick from the start, then an abandoned pass. But once the young Bulls got into their stride, there was simply no stopping them.
Price showed his pace to win his first try with a 50-yard sprint to the line after a fine counterattack of his own 22 by Builth. Outside half Rhys Davies added the extras on the right sideline.
Athletic fought back with a try from James Puaca and did their best to keep pace with their unbeaten rivals. They created plenty of half breaks but just couldn’t turn them into points.
A penalty from Davies increased Builth’s lead before one of the Bulls’ players of the season, center Alecs Williams, smashed his way through the middle to cross for a scintillating try which Davies improved for create a gap of 12 points.
From there, the lead continued to grow as Price completed his hat trick to make it 27-5 at the break. The second half began with another brilliant solo effort from Builth, this time No.8 Iwan Coyle displaying a full range of skill.
The seventh try came from replacement winger Morgan Price and Davies ended with three conversions and a penalty to finish the job and put the final stamp of approval on an unforgettable season at the Mid Wales club.
To their credit, Bridgend Athletic had the last laugh when live scrum-half Evan Dadamo crossed for a consolation effort.
Scorers: Bridgend Athletic: Tries: James Puaca, Luke Griffiths, Evan Dadamo; Con: Evan Dadamo. Builth Wells: Trials: Ciaran Price 4, Alecs Williams, Iwan Coyle, Morgan Price; Cons: Rhys Davies 3; Pen: Rhys Davies