Promotion hopefuls Bournemouth crashed to a third straight defeat as a Peter Murphy goal gave Carlisle victory.
Carlisle had most of the game but the Cherries missed a great chance to grab a share of the spoils late on in an ill-tempered game when striker Danny Ings failed to hit the target with just the goalkeeper to beat.
Bournemouth looked lively early on against the slow starting Cumbrians and Marc Pugh stung the palms of Adam Collin with a rasping 25-yarder after a solo run.
Once Carlisle found their rhythm them looked the better side and it was central defender Murphy who put them in front in the 26th minute - forcing the ball home from five yards after the Cherries' defence had failed to clear James Berrett's corner from the right.
Murphy was Carlisle's most dangerous attacker and could easily have had a first half hat-trick heading over from another corner then in the 44th minute beating advancing keeper Shwan Jalal to a floated Berrett free-kick only to see his effort bounce inches wide.
Ben Marshall missed a clear chance to extend Carlisle's lead on the hour mark after a blunder by Jalal who spilled a high ball from Berrett. His shot lacked power and Shaun Cooper got back on the line to boot clear.