Cross Keys climbed back to the First Division top spot, but must count themselves lucky to have held out for victory in the face of tremendous second-half pressure from Llandovery.
In the end, it was the only penalty of the match, kicked almost inevitably by Ioan Bebb, which tipped the scales in favour of Keys who led 14-0 at the interval. Relieved coach David Rees commented, "We should have scored a couple more tries in the first half to put things beyond the reach of Llandovery. But we defended well in the second half."
Both sides played expansive rugby with lots of exciting running, despite the sticky underfoot conditions. But Keys, excellently served by their less powerful pack, took the lead when, from a close-range scrum, lock Darren Davies broke through for the opening try.
For the remainder of the first period the home side were in command and fellow lock Nick Kelly crossed for the second touchdown after 25 minutes. Both tries were converted by Bebb.
After the interval Llandovery staged a rousing fightback and might well have scored following splendid bursts by centre Geraint John, outside-half Peter Lloyd, and wing Mark Jones. But such was the strength of the Keys cover that not until the 59th minute did John finally find his way through for a try, converted by Lloyd.
Twenty minutes later Bebb kicked the penalty which was to prove so crucial as Llandovery scored an injury-time try through winger Jones, which was again converted by Lloyd.