In their final warm up games before the start of the Leagues, City of Derry and Letterkenny played out friendlies at Judges Road last Saturday.
In the Under 18 game the home team won out by 21 points to 5, with the visitors first to score when John Anthony McFadden crossed after five minutes.
In the second half Derry took control, and took the lead when full back Adam McCartney raced over with Leigh Bronze converting.
His brother Peter made the running for the second try, when he kicked deep into the Letterkenny 22, and when the Donegal team failed to clear, Peter Canavan dived on the loose ball with Bronze adding the conversion.
Derry had their third and final score on 65 minutes, when winger Conor Gilmore powered over on the blind side after good approach work by the pack, with Bronze adding a third conversion.
In the Under 16 match Derry were too strong, running in eight tries and four conversions to win by 48 points to 3.
Derry opened the scoring after five minutes when centre Adam Bratton crossed, and then Adam McLaughlin added two scores along with Stewart Simpson, who added a conversion for a half time score of 17-0.
McLaughlin and Adam Killen who added two further scores, were complimented by Simpson kicking two conversions.
Letterkenny had their only points with a penalty, but in the final six minutes Rodney Hill and Craig Huey crossed with Simpson adding a conversion to complete the scoring.
Derry Under 14's completed a clean sweep with a 33-8 result, running in five tries to one from the Donegal team.
Centre Gareth Kelly opened the scoring, with winger Ross Doherty converting, replied to by a Letterkenny penalty.
Kelly added another score, with number eight William Knox diving under the posts with Doherty again converting, for a 19-3 half time lead.
Kelly added a fourth try converted by Doherty, and Letterkenny had their only touch down when Pasqualle Dunn raced through. Kelly completed the try scoring with his fourth touchdown, with out half Finn Cooper converting.