Cross Keys knocked Cardiff off the top of the Principality Premiership table with a 24-30 win at Cardiff Arms Park on September 27.
Despite having two players sent to the sin-bin in the second-half, Keys eventually hit the front for the first time on 58 minutes when Scott Matthews crossed for his side’s second try.
From there they never looked back and all that Cardiff emerge with was a losing bonus point.
Lloyd Lewis and James Leadbeater were the other try scorers for Keys. Jones out-gunned home goal kicker Dean Gunter 5-4 in the penalty stakes and 2-1 in conversions, while Keys also outscored the Blue and Blacks 3-2 in tries.
The win leaves Cross Keys sixth in the table ahead of their match against Ebbw Vale at home on October 4.