Bryan Prunty scored four goals as Dumbarton trounced East Fife to claim a first league win of the season.
Martin McBride opened the scoring with a long-range effort before Prunty fired home his first on 20 minutes.
Prunty and James Lyden added further goals before the break and East Fife's Ryan Wallace missed a penalty after a foul by Lyden on Craig Johnstone.
A volley by Prunty on 79 minutes and a cool finish by the striker five minutes from the end completed the scoring.
Michael Brown, Scott Durie, Campbell, Ovenstone, Muir, Johnstone, Park, Darren Smith (Young 3), Linn, Hislop (Ogleby 60), Wallace, Young (Robert Sloan 60). Subs Not Used: Collier, Cook.
Ewings, Lyden, McNiff, Nugent, Creaney, Gilhaney, McBride (Brannan 75), Nicoll, Agnew (Ramage 86), Prunty, Walker (Winters 80). Subs Not Used: Grindlay, Wallace.
McBride 17, Prunty 20, 33, Lyden 45, Prunty 79, 85.