Everton's struggles at Goodison Park returned as Salomon Rondon snatched a much-needed 1-0 Premier League victory for West Brom on Saturday.
Roberto Martinez's side slipped to their sixth home league defeat of the season despite dominating throughout, as Albion were restricted to rare counter-attacks - the first of which resulted in the decisive goal.
Jonas Olsson's header was converted by Rondon, the Venezuelan striker chesting the ball home from a yard out in the 14th minute.
Ross Barkley and Tom Cleverley both struck the woodwork before half-time as Everton piled on the pressure, and the introductions of Arouna Kone and Gerard Deulofeu after the break failed to have the desired effect for Martinez.
Tony Pulis' team remained resolute to end a run of five Premier League games without a win and claim a first away victory since October, while Everton failed to close the gap on the European qualification places.
Olsson's front-post flick from Stephane Sessegnon's corner looped over Joel Robles and Rondon - one of four changes from last weekend's 1-0 defeat to Newcastle United - bundled the ball home.
Ramiro Funes Mori was denied an equaliser by the legs of Claudio Yacob, before Ben Foster's fingertips kept out Aaron Lennon's deflected strike.
Even when Everton were able to beat the West Brom goalkeeper the woodwork denied them, with Barkley hitting the post with a fine curling effort before Cleverley's cross found the same upright having caught Foster out.
The second half brought no let up for the Albion defence as Everton continued to probe, James McCarthy the first to test Foster with a low drive from Lennon's pull-back.
Gareth Barry saw an audacious strike fizz over the crossbar before Everton had a slice of luck as West Brom substitute Chris Brunt went agonisingly close to a second, his low shot nearly capping a swift counter.
Kone and Deulofeu brought fresh impetus late on as Martinez threw everything at Albion, but West Brom were not to be denied a hard-earned victory.
