Renato Ibarra's goal on the hour mark earned Vitesse Arnhem three points against ADO Den Haag to further consolidate their seventh-placed position in the Eredivisie.
The Ecuadorian midfielder was teed up by Marco van Ginkel for the only goal at the Gelredome.
Despite the defeat, ADO remain in 14th place, seven points clear of the drop zone, but Vitesse now look a strong bet to feature in the Europa League qualification play-offs.
The match got off to a poor start but Vitesse's top scorer Wilfried Bony was the first to threaten with a 19th-minute header which was palmed away for a corner by ADO goalkeeper Gino Coutinho.
Vitesse goalkeeper Piet Velthuizen comfortably fielded a shot from Kenneth Omeruo while an error from Giorgi Kashia in the 29th minute allowed Jens Toornstra to lead an ADO break, but his pass for Charlton Vicento was overhit.
Vicento turned provider for Toornstra in the 34th minute, springing the offside trap and then pulling the ball back to his team-mate whose shot struck the bar with Velthuizen beaten.
Tjaronn Chery curled a shot wide from the edge of the area early in the second half for Den Haag, and within seconds Van Ginkel failed to connect with Ibarra's cross from the right at the other end.
Ibarra was the supply line again in the 52nd minute as his cross was met by the head of substitute Mike Havenaar and Coutinho needed two attempts to keep it out.
Vicento fired over the top after Omeruo's cross eluded Lex Immers in the 58th minute, and two minutes later Ibarra broke the deadlock.
He cut in from the right, kept the ball under a challenge from Christian Supusepa and then lifted it over Coutinho.
The ADO goalkeeper did well to keep out a close-range Havenaar effort 15 minutes later following a Nicky Hofs corner, and then kept out a weak attempt by the same player in the 77th minute after he was released by Ibarra.