Albion earned a 1-0 win against Sheffield Wednesday on Tuesday evening.
John Swift’s early goal, combined with a couple of notable Alex Palmer saves, helped the Baggies to all three Sky Bet Championship points at The Hawthorns.
Carlos Corberán’s men are now five unbeaten ahead of Friday night’s trip to Birmingham City.
The boss made one change from Saturday’s impressive victory at Preston, switching Brandon Thomas-Asante in for Grady Diangana.
And his side started brilliantly in B71 – opening the scoring inside 13 minutes when Darnell Furlong and Jed Wallace linked up to hand Swift a chance, which he emphatically fired into the roof of the net.
Albion were indebted to Alex Palmer midway through the half as he brilliantly tipped Tyreeq Bakinson’s curler over.
And, after Okay Yokuslu saw a low strike well saved down the other end, the Baggies’ goalkeeper was forced into another good stop before the break, denying Ashley Fletcher’s close-range effort.
The hosts continued to dominate possession following half-time without really threatening the Wednesday goal, Swift going closest via a dipping shot that went narrowly wide on the hour mark.
Matty Phillips also drilled an opportunity over as Albion tried to seal the points, but struggled to score a second.
They were helped by the visitors playing the final 10 minutes a man down, Akin Famewo suffering an injury and Wednesday’s five substitutions already having been used.
That caused a lengthy stoppage time to be added on, though Albion comfortably saw it out to claim an important, and successive, win.
Albion: Palmer; Furlong, Kipre, Bartley, Pieters; Yokuslu, Mowatt; Wallace, Swift (Chalobah 90+3), Phillips (Townsend 69); Thomas-Asante (Diangana 86).
Substitutes: Griffiths, Taylor, Ajayi, Pipa, Molumby, Fellows.
Attendance: 22,553 (1,919).