Leon Clarke scored on his home debut to earn Chesterfield a well-deserved 1-0 victory in the clash between two of the promoted sides at the B2net Stadium.
The on-loan Swindon striker struck for the second game running midway through the second half, but substitute Mark Cullen fluffed a glorious chance to save the Shakers from a fifth consecutive League defeat.
The Spireites made all the running without creating a clear chance until Clarke put Scott Boden in a minute before the interval, only for Trevor Carson to make an excellent save.
The home side continued to control the game in the second half and were rewarded when a low cross fell to Clarke, who placed a left-foot shot past Carson from 12 yards.
Bury had hardly threatened but a double change almost paid off when, first, Giles Coke forced Tommy Lee into a sharp save in the 73rd minute before Cullen somehow missed from three yards after the goalkeeper failed to hold a low cross.
Lee's 200th league start ended early when he went off injured six minutes from time but Chesterfield still kept a third successive clean sheet for the first time under manager John Sheridan.
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