Scrum-half Zylon McGaffin delivered another precious try for Darlington Mowden Park as they maintained their place in the National Two North promotion scramble.
The South African crossed 70 minutes into their 15-9 away win at Chester, putting them ahead for the first time in the game having trailed 9-5 at half-time, Jack Allcock scoring from a driven maul.
The win leaves Mowden third in the table with only one automatic promotion spot and one play-off berth, but crucially with a game in hand on the teams above them.
Tynedale’s bid to remain in National One took a dent at second-placed Rosslyn Park, the visitors losing 31-11 in London despite centre Ben Frankland’s try.
Blaydon were beaten with the very last play at home to Old Albanians, prop Camilo Parilli-Ocampo scoring in the left corner to rein in what had been a 27-10 deficit going into the last 25 minutes.
First-half tries from Harry Bate and Sean Brown looked to have the home side cruising, Tommy Banks adding a third before Old Albanians found some focus against a Blaydon side who had brought their replacements on from a winning position.
Durham School were beaten 20-15 by Warwick in the semi-finals of the NatWest Cup, England Students beating Wales 26-16 with a squad including Durham pair Sean Robinson and Murray Galbraith-Lowe and Newcastle University trio Will Witty, George Cullen and Joe Beckett.