After taking just a point from their previous two home games Bethesda returned to winning ways on Easter Monday at the expense of local rivals Mynydd Llandegai.
Pesda are now eight points clear at the Premier summit with five games to play.
The Ogwen Valley hosts took the lead in first half added time through 17-year-old Gethin Roberts, Corey Lundstram providing the assist.
Athletic doubled their total on 66 minutes when captain Osian Hughes notched his 27th goal of the season in all competitions via a magnificent free kick.
Iwan Morris pulled one back for the visitors soon after, but Bethesda sealed the win when Hughes set up Kyle Hartleb to make it 3-1.
Bethesda’s remaining league games
May 3: Talysarn Celts (h)
May 7: CPD Boded (away)
May 10: CPD Aberffraw (away)
May 14: Gwalchmai (home)
May 22: Gwalchmai (away)
Division One champions Blaenau boosted their lead to 12 points with a six-goal show at the bottom side.
Geraint Edwards put the Quarrymen in front on seven minutes before Iwan Jones made it 2-0 after 17.
Sub Gethin Roberts made quite an impact when he scored three minutes after coming on at the start of the second half.
Two 17-year-olds rounded off the scoring for the title-winners – Cameron Jones making it 4-0 before Siôr Jones added a double on 76 and 87 minutes,
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