ALBION's under-18s beat Leyton Orient 4-0 to progress through to the FA Youth Cup Fourth Round in a dominant display at The Hawthorns.
The Baggies took the lead on two minutes thanks to Nick Clayton-Phillips' powerful effort from inside the area.
And it was Clayton-Phillips who doubled Albion's lead midway through the first half when his shot squeezed under Orient goalkeeper Arthur Janata.
After the break it took just a couple of minutes for the home side to extend their advantage even further through Rayhaan Tulloch's strike.
Orient did go close when Ruel Sotiriou's header was cleared off the line by Sam Wilding, but Tulloch notched his second of the game with seven minutes left to round off the scoreline.
ALBION: Przybek, Soleman; Ferguson, Healy, Harmon; Wilding, Brown (Hall 80); Tulloch, Azaz (Soule 83), Phillips; Morton (Wakeling 84).
Substitutes: Cann, McCourt.