Albion were again forced to come from behind to extend their unbeaten start to the season.
Kenneth Zohore stepped off the bench to fire home an 88th minute penalty following Ovie Ejaria's 70th minute strike.
Here's how we rated Albion's players:
Sam Johnstone: Couldn't do much about Reading's goal and was pretty solid enough. One good save from Swift's free kick. 6
Darnell Furlong: Showed he's a more rounded footballer than young Nathan Fergson. Should've been awarded a penalty early on and then unlucky not to set up a goal for Austin. 7 MOTM
Semi Ajayi: Looked more composed that he did against Luton. Won pretty much everything in the air. Maybe could've done better to close down the shot for Reading's goal. 7
Kyle Barley: Another solid display without being spectacular. Looks far more comfortable this season when he's asked to defend and not be a playmaker. 7
Kieran Gibbs: Didn't really get forward as much as he may have liked or create an overlap for Diagana. Wasn't tested much in defence. A quiet evening. 6
Jake Livermore: Was happy to get to put his foot in to try and win the midfield battle. But he was too comfortable in possesion and often chose the easy ball back to Ajayi or Bartley allowing Reading to regain their shape. 6
Romaine Sawyers: Had almost 100% pass completion against Luton at the weekend but his radar was way off last night. Struggled to impose himself on the game or create anything going forward. 5
Graby Diagana: Struggled to hit the heights of the weekend but worked hard to create chances and never let his head dropped. Shoud've done better when he worked a one vs one but blased over. 6
Matt Phillips: Wasted a good chance in the first half but his final delivery was really poor all evening. Faded as the game went on and was fortunate not to get subbed. 6
Filip Krovinovic: Another hard working display but he was another who struggled to engineer any quality in the final third. Did win the penalty with smart link-up playbut was guilty too often of taking too many touches. 6
Charlie Austin: Was feeding off scraps as Albion struggled to create any chances for him. Saw his best effort cleared off the line when it looked like he'd opened his league account. 6
SUBS
Matheus Pereira: Started on the left but only made an impact when he was shifted into the middle. Showed glimpses of excellence and linked up really well with Kronvinovic late on. Wasted a good chance to give Albion the lead. 6
Kenneth Zohore: Looked a lot more mobile and was a willing runner into the channel. Had one effort saved before he grabbed the ball at the death to rescue a point from the spot. Good cameo. 7
Kyle Edwards: Impressed from the bench and caused problems with his direct running but was another whose final ball wasn't up to scratch. 7