FC Twente ensured they will head into their title decider with Ajax in a fortnight's time in pole position to retain their crown by thrashing basement boys Willem II this afternoon.
Victory kept the defending Eredivisie champions one point clear of the Amsterdammers going into the final game of the campaign.
Today's victory was never in doubt from the moment Luuk de Jong put Twente in front late in the first half.
Douglas doubled the advantage before an own goal from Dragan Jelic and a Theo Janssen penalty rounded off an easy win.
Defeat, along with victory for VVV Venlo, confirmed Willem II's relegation.
Twente, who also face Ajax in the KNVB Beker final next weekend, went into the game knowing they could be crowned champions today if they won and their rivals lost to Heerenveen.
As it was Ajax won, but Twente were clearly in no mood to hand them the advantage.
De Jong should have hit the target from Janssen's knock-down but shot wide and Wout Brama fired just wide from long range as they started with intent.
Bryan Ruiz superbly brought down Nacer Chadli's from the left only for his shot to crash back off the bar before his goal-bound header was kept out by a fine one-handed save from goalkeeper Vladan Kujovic.
They finally went ahead in the 39th minute as Ruiz controlled Chadli's long ball into the area and laid a pass back for De Jong to shoot home.
Ruiz was denied again by Kujovic three minutes after the break before Douglas made it 2-0 in the 50th minute.
Janssen's cross-field ball picked out Denny Landzaat, who sent a low cross into the box for Douglas to tap home.
Jelic put through his own net in the 63rd minute, inadvertently diverting Janssen's cross, as things went from bad to worse for Willem II
And Janssen sealed the rout in the 76th minute, slamming home a penalty after Bart Biemans had dragged Brama to the ground.