Barnsley came from behind to win for the first time since their promotion to the Championship last year as they won 2-1 at Birmingham City on Tuesday evening.
The hosts took the lead early in the second half but Cauley Woodrow levelled from the penalty spot after a foul on Callum Brittain then Callum Styles won it with six minutes remaining.
It was a fifth win in eight games under Valerien Ismael and lifted them to 13th in the Championship, seven points off the top six and nine clear of the bottom three.
Victor Adeboyejo came in for the benched Luke Thomas – to make his first Championship start and his first in a Barnsley league game since March last year – while Aapo Halme was back among the substitutes instead of Jasper Moon.
The Reds were the better side in the first half but, like at Blackburn Rovers on Saturday, they missed several good chances to take the lead.
The visitors had the first chance of the game as Cauley Woodrow latched onto a good pass down the left by Mads Andersen but Barnsley's top-scorer volleyed the difficult opportunity over the bar from a tight angle 12 yards out.
Conor Chaplin should have put the Reds in front in the seventh minute when he fired across goal and wide from the left of the six-yard box after Adeboyejo won the ball from former Barnsley captain Marc Roberts following a quick Herbie Kane free-kick.
Woodrow came close again in the 16th minute when Callum Brittain passed from the right wing to Chaplin who cushioned an excellent pass between two home defenders to his fellow striker who fired over from the right of the box 15 yards out.
Birmingham's Ivan Sanchez sent a free-kick over the bar from 25 yards out while Callum Styles fired off target from a similar distance before Chaplin curled wide of the bottom left corner on the turn 18 yards out.
Woodrow then smashed a very powerful effort just over the bar 22 yards out after Styles won the ball deep in the Blues half. Woodrow's pass put Adeboyejo through on goal but he took a heavy first touch and it was cleared.
The hosts took the lead on 56 minutes when Andersen and Michal Helik both went to close down Jonathan Leko in the right corner and the home man impressively back heeled the ball between them to the onrushing Maxime Colin who squared for Scott Hogan to tuck into the bottom left corner from close range. The goal by the former Barnsley trialist was the game's first shot on target.
Callum Brittain should have levelled with his first Barnsley goal midway through the second half when Chaplin's left-wing low cross fell to him but his 12-yard effort went over the bar.
Brittain made amends minutes later when he went down under a challenge by Kristian Pedersen and referee Tony Harrington pointed to the penalty spot. Woodrow fired in for his sixth goal of the season and 40th for the club.
Barnsley then made a quadruple change with Romal Palmer, Matty James, Thomas and Dominik Frieser on coming for Mowatt, Kane, Chaplin and Adeboyejo.
The Reds then went in front after 84 minutes when a long throw by substitute Frieser was hooked out to Styles who volleyed into the bottom left corner via a slight deflection from the edge of the box.
Barnsley (3-4-3): Walton; Sollbauer, Helik, Andersen; Brittain, Mowatt (Palmer 77mins), Kane (James 77), Styles; Adeboyejo (Frieser 77), Woodrow (Halme 86), Chaplin (Thomas 77).
Unused: Collins, Oduor, Miller, Schmidt. Yellow cards: Andersen. Goals: Woodrow (pen) 71, Styles 84.
Birmingham (5-3-2): Etheridge; Colin, Roberts, Dean, Clarke-Salter (Friend 81mins), Pedersen (Bela 81); San Jose, Sanchez, McGree (Sunjic 81); Leko (Toral 85), Hogan (Jutkiewicz 85). Unused: Prieto, Dacres-Cogley, Gardner, Kieftenbeld. Yellow cards: Leko, McGree. Goals: Hogan 56.