Substitute Robert Snodgrass rescued a point for Leeds as a close-range finish on his return from injury pegged back 10-man Crystal Palace.
Chris Martin gave the Eagles an early lead as he cut in and fired into the bottom corner of Andy Lonergan's goal.
But Sean Scannell got a second yellow card for a clumsy challenge on Danny Pugh to leave the hosts a man down.
Snodgrass tucked away Ross McCormack's pass before Julian Speroni's save denied Mikael Forssell a Leeds winner.
Snodgrass was a surprise inclusion in the Leeds squad after having surgery on his appendix just two weeks ago and the Scotland international justified his place on the bench by netting the equaliser within seven minutes of his introduction.
Palace were victorious in the first leg of the Carling Cup semi-final against Cardiff on Tuesday night but they have been inconsistent in the Championship of late.
They began the stronger of the two sides, with Martin finding the net after just six minutes.
Leeds responded well, with Pugh blasting Adam Clayton's corner over the bar from six yards, before Speroni was called upon to save well from Clayton and Tom Lees to preserve Palace's lead.
Scannell had already been cautioned for a foul on Andros Townsend when he clattered into Pugh to earn his marching orders on the stroke of half-time.
Leeds pressed forward after the break and McCormack and Lees both went close before Snodgrass levelled.
The visitors could have departed Selhurst Park with all three points as Snodgrass, Pugh and Clayton threatened from distance before Speroni blocked Forssell from close range.
Crystal Palace boss Dougie Freedman on Sean Scannell's red card:
"I felt the decision was made too quickly and looking back, it was probably not a sending off.
"But the referee has to make these decisions in real time and the game is quick today. I think that's why the few seconds after the referee blows the whistle, is very crucial to them.
"It is unfortunate but we don't look for excuses. We got on with it and got a good point."
Leeds assistant manager Glynn Snodin:
"We thought we did well. We tried to get the ball out wide and make the extra man count.
"We got the goal in the second half and thought we could push on and go and win the game.
"But Palace are good on the break, even with 10 men, and when Wilfried Zaha came on.
"They came out in the first half and put us on the back foot. They had a few early shots and then went 1-0 up after six minutes, like they did last season, so it was a good point for us."
- 01 Speroni
- 03 Wright
- 05 McCarthy
- 06 Gardner
- 41 Dumbuya (McShane - 67' )
- 04 Parr
- 07 Ambrose
- 08 Dikgacoi
- 11 Scannell Dismissed after an earlier booking
- 19 Easter (Murray - 82' )
- 35 C Martin (Zaha - 70' )
- 34 Price
- 30 McShane
- 15 Jedinak
- 16 Zaha
- 17 Murray
- 01 Lonergan
- 22 Lees
- 28 White (Snodgrass - 56' )
- 29 Thompson
- 48 O'Dea
- 08 Brown
- 15 Clayton
- 16 Pugh
- 17 Townsend
- 10 Becchio (Forssell - 79' )
- 44 McCormack
- 24 Taylor
- 04 Bruce
- 20 Nunez
- 18 Forssell
- 23 Snodgrass
Live Text Commentary
Full Time The referee blows his whistle to end the game.90:00 +3:15
Unfair challenge on Darren O'Dea by Wilfried Zaha results in a free kick. Free kick taken by Andy Lonergan.90:00 +1:36
Free kick awarded for a foul by Wilfried Zaha on Tom Lees. Direct free kick taken by Danny Pugh.90:00 +0:22
Glenn Murray concedes a free kick for a foul on Tom Lees. Zac Thompson takes the free kick.87:49
Corner taken by Robert Snodgrass from the right by-line to the near post, clearance made by Glenn Murray.85:43
Corner taken by Robert Snodgrass from the right by-line, Mikael Forssell takes a shot. Julian Speroni makes a save.82:40
Header from deep inside the area by Ross McCormack goes harmlessly over the crossbar.81:54 Substitution
Substitution (Crystal Palace) makes a substitution, with Glenn Murray coming on for Jermaine Easter.81:38
Adam Clayton has a shot on goal from outside the area which misses left.79:14
Free kick awarded for an unfair challenge on Michael Brown by Wilfried Zaha. Michael Brown takes the direct free kick.78:42 Substitution
Substitution Mikael Forssell comes on in place of Luciano Becchio.76:32
Effort from outside the box by Danny Pugh goes wide right of the target.74:07
Robert Snodgrass takes a shot from just outside the penalty area which clears the crossbar.72:05
The referee blows for offside. Tom Lees restarts play with the free kick.71:18
Wilfried Zaha gives away a free kick for an unfair challenge on Tom Lees. Free kick taken by Andy Lonergan.69:43 Substitution
Substitution (Crystal Palace) makes a substitution, with Wilfried Zaha coming on for Chris Martin.66:24 Substitution
Substitution (Crystal Palace) makes a substitution, with Paul McShane coming on for Mustapha Dumbuya.62:41
The assist for the goal came from Ross McCormack.62:41 Goal scored
Goal! - Robert Snodgrass - C Palace 1 - 1 Leeds Goal scored by Robert Snodgrass from close range to the bottom left corner of the goal. Crystal Palace 1-1 Leeds.59:36
Foul by Luciano Becchio on Patrick McCarthy, free kick awarded. Julian Speroni restarts play with the free kick.
Michael Brown fouled by Chris Martin, the ref awards a free kick. Michael Brown takes the free kick.57:53
Chris Martin concedes a free kick for a foul on Michael Brown. Andy Lonergan takes the direct free kick.54:56 Substitution
Substitution Aidan White goes off and Robert Snodgrass comes on.52:50
Unfair challenge on Jonathan Parr by Andros Townsend results in a free kick. Darren Ambrose delivers the ball from the free kick right-footed from left channel, clearance by Tom Lees.47:06
Ross McCormack takes a shot. Blocked by Patrick McCarthy. Corner taken by Adam Clayton from the left by-line, Tom Lees takes a shot. Save made by Julian Speroni.45:01
The second half has started.45:00 +2:14 Half time
Half Time The ref blows to end the first period.44:14
Direct free kick taken by Adam Clayton. Luciano Becchio takes a shot. Julian Speroni makes a save.44:14 Dismissal
Dismissal The referee shows Sean Scannell a red card for second bookable offence.43:18
Free kick awarded for an unfair challenge on Danny Pugh by Sean Scannell.42:08
Effort on goal by Chris Martin from just inside the penalty area goes over the target.39:03
Adam Clayton concedes a free kick for a foul on Kagisho Dikgacoi. Free kick taken by David Wright.35:22
Kagisho Dikgacoi concedes a free kick for a foul on Adam Clayton. Andros Townsend takes the direct free kick. Adam Clayton takes a shot. Save made by Julian Speroni. Tom Lees takes a shot. Save made by Julian Speroni.33:56
Corner taken right-footed by Adam Clayton to the near post, Close range shot by Danny Pugh goes over the bar.31:49
Patrick McCarthy concedes a free kick for a foul on Adam Clayton. Ross McCormack produces a shot on goal direct from the free kick, blocked by David Wright.29:24
Sean Scannell takes a shot. Save by Andy Lonergan.25:02
Free kick awarded for a foul by Zac Thompson on Chris Martin. Free kick taken by Anthony Gardner.24:15
The offside flag is raised against Jermaine Easter. Free kick taken by Andy Lonergan.23:32
Andros Townsend has an effort at goal from outside the area which goes wide left of the target.20:45
Long range shot by Andros Townsend goes wide right of the net.18:54
Shot from a long way out by Michael Brown goes wide of the left-hand post.16:33
Ross McCormack takes a shot. Blocked by Jonathan Parr. Corner taken by Andros Townsend played to the near post, clearance by Patrick McCarthy.15:13
Direct free kick taken by Zac Thompson.15:13 Booking
Booking Sean Scannell goes into the book for unsporting behaviour.15:02
Sean Scannell concedes a free kick for a foul on Andros Townsend.14:11
Michael Brown concedes a free kick for a foul on Sean Scannell. Patrick McCarthy takes the direct free kick.13:20
Darren Ambrose produces a right-footed shot from just outside the penalty area that goes harmlessly over the target.12:19
Chris Martin gives away a free kick for an unfair challenge on Tom Lees. Tom Lees takes the direct free kick.11:02
Michael Brown fouled by Jermaine Easter, the ref awards a free kick. Strike comes in from Ross McCormack from the free kick.10:20
Corner taken by Andros Townsend played to the near post, clearance made by Patrick McCarthy.5:37 Goal scored
Goal! - Chris Martin - C Palace 1 - 0 Leeds Chris Martin grabs a goal from just outside the penalty box to the bottom right corner of the goal. Crystal Palace 1-0 Leeds.4:08
The ball is swung over by Danny Pugh.2:28
Darren Ambrose takes a shot. Save made by Andy Lonergan.1:34
Chris Martin takes a shot. Save by Andy Lonergan. Darren Ambrose decides to take a short corner.0:00
The match gets underway.
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