Keys fielded a strong side with Dragons fly-half Steffan Jones' faultless place-kicking proving to be key. The Drovers on a few occasions untypically conceded turnover ball in the contact area when promising attacks looked highly likely to result in a score while also missing 11 points with the boot.
The visitors fashioned a chance to get the win with the very last move of the game but failed to exploit a clear two on one chance. They will be looking to get back to winning ways against a Cardiff side who have had new backs coach Mark Ring with them for a full week ahead of tonight's fixture.
The Blue and Blacks also suffered an away reversal at the Bridge Field, Bedwas last Saturday where, having stormed into a 14-0 lead after only ten minutes, they lost out to 14 men in a second half turnaround which resulted in a 29-20 defeat.
This leaves them with a played 10, won five, lost five record nearing the season's half way stage. However with Ring having joined recently, they will always be a dangerous attacking team and the Drovers will have to recapture some of the early season form if they hope to repeat the 48-22 success at the Arms Park on the opening game of the season.
Llandovery: 15 Mathew Jacobs 14 Christopher Knight 13 Sam Soul 12 Jack Roberts 11 Jake Randell 10 Cerith Rees 9 Lee Philip Rees, 1 Owain Jones 2 Thomas Ball 3 Gareth Howells 4 Shaun Jones 5 Bryn Griffiths (c) 6 Senio Aiono 7 Shaun Miles 8 Luke Kendall.
Replacements: Thomas Jones, Dorian S Williams, Llewellyn Jones, Richard Brooks, Jonathan Lewis Robert J Walters, James Garland, Dylan Wyn Morgans.
Cardiff: 15 Joseph Griffin 14 James Davies 13 Matthew Smith 12 James Thomas 11 Steven Cullen 10 Gareth Davies
9 Robert Lewis, 1 Lewis Smout 2 Aaron Fowler 3 Simon Gardiner 4 Alwyn Lee 5 Matthew Screech 6 Ellis Jenkins
7 Thomas Young 8 Daniel Crimmins.
Replacements: Ryan Harford, Ethan Lewis, Callum Lewis, Benjamin Roach, Reuben Tucker, Sion Hopkins, Darren Ryan, Owen Jones.