Barnsley's season is over after a 1-1 draw at Swansea City meant they lost 2-1 on aggregate in their Championship play-off semi-final.
The hosts took the lead with a controversial goal just before the break then Cauley Woodrow levelled but the Reds could not find a second goal to force extra-time.
That finished a campaign in which Barnsley were 500-1 for promotion when Valerien Ismael took over in October but during which they broke various records and recorded their fourth best ever points tally.
Ismael made two changes from the side that lost the first leg 1-0 at home on Monday. Victor Adeboyejo and Carlton Morris replaced Dominik Frieser and Daryl Dike who dropped to the bench.
There was very little action early on as the first half-chance arrived in the 20th minute and saw Alex Mowatt play a low right-wing corner to Callum Brittain who made almost no connection with the ball as he attempted a 15-yard shot.
The hosts took the lead in the 39th minute. After Michal Helik was controversially judged to have fouled Wayne Routledge, Conor Hourihane's free-kick was punched away by Brad Collins but Matt Grimes skipped past Callum Brittain and curled in a fine strike from the edge of the box.
Brittain had a shot minutes later but curled well wide from the edge of the box and the Reds trudged off disappointed at half-time. They had had plenty of the ball but lacked the killer final pass or cross.
Ismael removed Romal Palmer and Adeboyejo at the break, with Jordan Williams and Dike coming on which meant Brittain went into central midfield.
The Reds had their first shot on target in the 64th minute when Callum Styles' left-wing corner was headed at the back post by Morris but Woodman saved.
Minutes later, a Styles cross from the left reached Williams in the box but his shot was blocked.
The visitors scored in the 70th minute when substitute Williams brilliantly ran 50 yards down the right before squaring to Woodrow who lashed into the bottom right corner from 15 yards out.
Morris almost levelled the tie in the 79th minute but his near post header from a right-wing Mowatt corner was sent well wide. The same player then met a Woodrow corner and, climbing above his marker six yards out, sent a difficult header looping onto the roof of the net.
Former Barnsley man Korey Smith should have made it 2-0 in the 88th minute as he went clean through on goal but slipped when shooting and the ball rolled to Collins.
Swansea (4-3-3): Woodman; Naughton, Cabango, Guehi, Bidwell; Fulton, Grimes, Hourihane, Ayew, Routledge (Roberts 54mins), Lowe. Unused: Hamer, Bennett, Latibeaudiere, Manning, Smith, Dhanda, Whittaker, Cullen. Goals: Grimes 39.
Barnsley (3-4-3): Collins; Sibbick (Kitching 89mins), Helik, Andersen; Brittain, Palmer (J Williams HT), Mowatt, Styles; Adeboyejo (Dike HT), Woodrow, Morris. Unused: Walton, Sollbauer, Halme, Moon, Chaplin, Dike, Frieser. Goals: Woodrow 70.