Crawley eased to victory over struggling Bournemouth, who have won just once in 12 games in all competitions this season.
Hope Akpan gave the hosts the lead, firing in from near the penalty spot, before Joe Walsh's header doubled the advantage.
Lee Barnard pulled one back when he converted a cross from Charlie Daniels.
But Nicky Adams made it 3-1 when he beat David James after latching on to Nicky Ajose's pass.
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Crawley Town boss Richie Barker told BBC Sussex:
"We set out with a game-plan and we knew that they would try to keep it. We tried to win it back in certain areas and I can't remember them having loads of shots.
"We want to play the right way and we recognise that tonight wasn't probably going to be that way because there was a mistake in somebody somewhere.
"We decided if we were going to play, we were going to in the right half and I thought we did that."
Bournemouth manager Paul Groves told BBC Radio Solent:
"Before every single game we do set-plays, and you do every little bit of detail. But you've conceded four goals in the last two games from set-plays. People are responsible for doing their jobs. It's very difficult to accept.
"The team of late have been chopped and changed because of injuries. Twelve injuries make a difference to any squad.
"In football you don't quit. Never quit on the pitch, never quit off the pitch."