Feyenoord striker Roy Makaay set up Ivorian Sekou Cisse with an excellent long ball after 12 minutes to secure a victory that leaves them in fourth place with 37 points, just one point behind Ajax Amsterdam.
Advocaat's side lost at his former club PSV Eindhoven in the Belgium coach's first game back in the Dutch league last weekend but goals by Rasmus Elm, Sebastien Pocognoli and Maarten Martens wrapped up victory over Den Haag who remain third from bottom.
Alkmaar remain seventh on 28 points.
‘Maybe I’ll be signed by Wrexham, who knows? English football would suit me – if an offer came, I wouldn’t think twice, I’d go immediately’ Euro 2024 cult hero reveals his UK dream
‘Managing Leeds? It was an option that appeared, but it wasn’t the right timing. I decided it wasn’t a good idea to leave the club I was at mid-season’: Premier League boss admits to turning down opportunity to replace Jesse Marsch in 2023
