© PA Photos
The visiting Baggies broke the deadlock in the 29th minute when skipper Chris Brunt was afforded too much time 30 yards from goal and his rising shot proved to be too powerful for Robert Green in the home net.
It took hosting QPR some time to play their way into the encounter, but when they did, they almost levelled proceedings with 38 minutes played. Adel Taarabt had the effort from distance, but his curling free kick went a couple of inches wide of the upright.
© AP Photos
The Baggies doubled their advantage just five minutes into the second half when QPR goalkeeper Green palmed a ball into his own net.
That sparked Harry Redknapp's side into life as they pressed on for the equaliser for the remainder of the match, but in vain.