 In 2000, while in the old North East 1, Mowden reached the 5th round (quarter-finals) of the Tetley Bitter cup after beating the prestigious London club Rosslyn Park in the 4th round in front of a home crowd of around 2,000+.In the fifth round they faced premiership opponents in the form of Harlequins at the Twickenham Stoop.The following years also saw further adventures in the National Cup.