Dominic Solanke's 22nd goal of the season set Bournemouth on their way to a win over a battling Derby County to move back into the Championship's automatic promotion places.
Solanke pounced to poke the edgy Cherries in front in first-half stoppage time after the spirited Rams had largely controlled the game to that point.
However, Derby saw penalty appeals waved away after Ravel Morrison went down in the box under a challenge from Leif Davis.
Solanke and Ryan Christie had good chances to extend Bournemouth's lead in the second half before Solanke's 90th-minute shot was palmed out by ex-Cherries keeper Ryan Allsop to substitute Jamal Lowe, who sealed it.