Bridgend stormed back into the Principality Welsh Premiership as they out-classed demoted Glamorgan Wanderers in a thrilling Arms Park play-off.
Wanderers' Gareth Cull edged Bridgend fly-half three penalties to two for his side to lead 9-6 at the break.
Flanker Josh Navidi's try put the Wanderers further ahead after the break.
But Luke Morgan and Ross Jones scored a brace apiece in the second period to send Bridgend up.
The Wanderers finished bottom of the Premiership and saw off Ebbw Vale 16-13 in the promotion/relegation semi-final ahead of the clash with Bridgendm who had a bye for that stage.
Bridgend, who are part of the Ospreys' region, won Division One West to earn their chance against the Cardiff Blues feeder club.
The Welsh Premiership will be reduced from 14 to 10 teams for the start of the 2012-13 season.