Scott Linton grabbed a brace as Cowdenbeath recorded a blistering five-goal win away to Airdrie.
Ryan Donnelly converted from 12 yards for the home side after six minutes.
But Jon Robertson's neat finish on 37 minutes and Linton's long-range drive put Cowden ahead by half time.
Lewis Coult slid home five minutes into the second-half, Linton fired home from 18 yards and Jordan Morton completed the rout with 12 minutes to play, profiting from Greg Stewart's pass.
Airdrie: McKane, Bain, Lilley, Stallard, Malone, Johnston (Devlin 46), Owens, Lynch (Keast 59), Stephenson, Holmes (Sally 58), Donnelly. Subs Not Used: Duncan, Lovering.
Booked: Stallard, Devlin, Owens.
Goals: Donnelly 6.
Cowdenbeath: Bejaoui, Brett, Winter, Mbu (Byren 82), Adamson, Robertson, Cameron (Miller 73), Linton, McKenzie, Coult (Stewart 67), Morton. Subs Not Used: Flynn, Makel.
Goals: Robertson 37,Linton 45,Coult 50,Linton 67,Morton 78.
Ref: Craig Charleston