Early goals from Brad Potts and Mamadou Thiam helped Barnsley register an important victory over promotion rivals Charlton at Oakwell.
After starting the day in fifth place, immediately below Charlton, the result took Barnsley above them into fourth.
A good move down the right saw Barnsley open the scoring inside the fourth minute as Cauley Woodrow's cross was played back by Thiam to Potts, who smashed his first-time shot past Jed Steer.
Steer was called into action to save Cameron McGeehan's 25-yard effort before the hosts went further ahead in the 14th minute.
The goal came when Thiam received the ball around 25 yards out and advanced before arrowing a shot into the top left-hand corner of Steer's net.
Thiam tried another long-range shot which only just cleared the bar and Steer made a good save to keep out Mike-Steven Bahre's effort.
Ben Reeves reduced the arrears in the 73rd minute with a clinical finish after Tarique Fosu's free-kick came back off the defensive wall but the visitors were unable to force an equaliser.
Charlton's Chris Solly was sent off in stoppage time following a second booking.
Match report supplied by the Press Association.
