The three lap,15section contest raised more than £400 for the Alzheimers Research Association even though fewer riders took part than in previous years.
Becky lost all her marks in seven sections in woodland bordering the quarry and they were severe enough to claim six marks off runner up Lee Hassall.
There was an equally close result in the Over 40 class where Andy Perry had a late win over Mark Talbot.
Expert:Becky Cook 4 marks lost, Lee Hassall 6.
Clubman expert: RHilton 27, DHassall 57.
Clubman:NPekala 34, A Kibby 42.
Novice: IGraham 27, A Humphries 33.
Over 50:RBrain 26, R Taylor 50.
Youth expert: OHumphries 50.
Youth A Main route: GTalbot 63.
Alternative route: O Pekala 34.
Youth B Main route: S Smetham 41.
Alternative route: C Lockyear 14.