A goal from Darren Ambrose gave Crystal Palace victory and left Middlesbrough's Gordon Strachan still without a goal or point since his arrival as manager.
Boro gave debuts to loanees Marcus Bent and Isaiah Osbourne but Bent was guilty of a glaring miss when he fired woefully wide when in front of goal.
After Leroy Lita squandered another chance for Boro, Neil Danns nodded on to Ambrose who sidefooted Palace ahead.
Julian Speroni kept out Gary O'Neil and Jonathan Franks as Boro were denied.
Crystal Palace manager Neil Warnock: "I was so pleased it fell to him (Darren Ambrose).
"It's not my fault someone gave him away. I bid £1.5m for him once - that's how much I rate him.
"He needs a certain type of manager and we make a good pairing.
"But I think we had 11 stars out there today."
Middlesbrough boss Gordon Strachan: "When you have chances like that and you don't take them you have a problem, luck has nothing to do with it.
"It's frustrating, just like last week against Plymouth when our best player, Adam Johnson, missed a penalty.
"It's frustrating for me, it's frustrating for the players who work so hard and it's frustrating for the fans."
90:00+4:21 The referee blows for the end of the match.
90:00+3:39 Shaun Derry gives away a free kick for an unfair challenge on Isaiah Osbourne. Free kick crossed by Gary O'Neil, Jose Fonte makes a clearance.
90:00+1:56 The official flags Jonathan Franks offside. Free kick taken by Julian Speroni.
90:00+0:43 Shot by Darren Ambrose from deep inside the penalty area misses wide to the left of the target.
89:56 Foul by Gary O'Neil on Johannes Ertl, free kick awarded. Julian Speroni takes the direct free kick.
86:03 Jonathan Franks takes a shot. Save made by Julian Speroni.
83:34 Julio Arca takes a shot. Save by Julian Speroni.
80:44 Substitution Nick Carle on for Neil Danns.
79:28 Rhys Williams fouled by Claude Davis, the ref awards a free kick. The free kick is delivered left-footed by Adam Johnson from right channel, save by Julian Speroni.
77:42 Foul by Johannes Ertl on Adam Johnson, free kick awarded. Free kick crossed by Gary O'Neil, save made by Julian Speroni.
76:02 Substitution Leroy Lita goes off and Jonathan Franks comes on.
76:02 Freddie Sears is flagged offside by the assistant referee. Direct free kick taken by Brad Jones.
75:13 Gary O'Neil takes a shot. Save by Julian Speroni.
73:13 Inswinging corner taken by Adam Johnson, save made by Julian Speroni.
72:39 Corner from right by-line taken by Adam Johnson.
67:55 Substitution Justin Hoyte goes off and Julio Arca comes on.
67:55 Leroy Lita is flagged offside by the assistant referee. Free kick taken by Jose Fonte.
66:19 Free kick awarded for a foul by Jose Fonte on Marcus Bent. Jonathan Grounds takes the direct free kick.
65:41 Corner taken right-footed by Gary O'Neil from the left by-line, save by Julian Speroni.
64:15 Neil Danns provided the assist for the goal.
64:15 GOAL - Darren Ambrose:Crystal Palace 1 - 0 Middlesbrough Goal scored by Darren Ambrose from close range to the bottom right corner of the goal. Crystal Palace 1-0 Middlesbrough.
63:12 Adam Johnson takes a inswinging corner.
61:08 The offside flag is raised against Leroy Lita. Direct free kick taken by Jose Fonte.
60:17 Clint Hill has an effort at goal from just outside the box which goes wide of the right-hand upright.
57:34 Inswinging corner taken from the right by-line by Adam Johnson.
56:07 Leroy Lita takes a shot. Julian Speroni makes a save.
55:30 Adam Johnson takes the inswinging corner, Johannes Ertl manages to make a clearance.
54:30 Effort from inside the area by Leroy Lita misses to the right of the target.
53:39 Corner taken right-footed by Darren Ambrose from the right by-line, Marcus Bent manages to make a clearance.
53:00 Free kick awarded for an unfair challenge on Alan Lee by Jonathan Grounds. Free kick taken by Danny Butterfield.
50:17 Marcus Bent is flagged offside by the assistant referee. Free kick taken by Julian Speroni.
49:51 Unfair challenge on David Wheater by Freddie Sears results in a free kick. Free kick taken by Brad Jones.
46:04 Clint Hill fouled by Gary O'Neil, the ref awards a free kick. Direct free kick taken by Julian Speroni.
45:15 Free kick awarded for a foul by Alan Lee on Sean St. Ledger. Brad Jones takes the free kick.
45:01 The referee gets the second half underway.
Half Time
45:00+2:37 The first half comes to an end.
45:00+2:06 Danny Butterfield has a shot on goal from outside the box which misses right.
45:00+1:08 Free kick awarded for an unfair challenge on David Wheater by Alan Lee. Brad Jones restarts play with the free kick.
41:40 Free kick awarded for an unfair challenge on Marcus Bent by Johannes Ertl. Free kick taken by Sean St. Ledger.
40:38 Free kick awarded for a foul by Marcus Bent on Claude Davis. Jose Fonte takes the direct free kick.
39:22 David Wheater gives away a free kick for an unfair challenge on Alan Lee. The free kick is delivered left-footed by Clint Hill from left channel, clearance made by Isaiah Osbourne.
37:59 Shot on goal by Johannes Ertl from just inside the area goes over the target.
37:30 Corner taken by Darren Ambrose.
36:54 Adam Johnson takes the inswinging corner, save made by Julian Speroni.
32:59 Strike on goal comes in from Darren Ambrose from the free kick.
32:59 Booking Isaiah Osbourne receives a caution for unsporting behaviour.
32:47 Isaiah Osbourne is penalised for handball and concedes a free kick.
32:00 Adam Johnson decides to take a short corner.
31:01 Header by Alan Lee from deep inside the penalty area misses to the right of the target.
29:00 Foul by David Wheater on Freddie Sears, free kick awarded. Free kick taken by Darren Ambrose.
28:22 Free kick awarded for a foul by Jose Fonte on Leroy Lita. Jonathan Grounds takes the direct free kick.
25:48 Corner taken right-footed by Darren Ambrose from the left by-line, clearance made by Gary O'Neil.
23:32 Unfair challenge on Julian Speroni by David Wheater results in a free kick. Julian Speroni takes the free kick.
22:32 Gary O'Neil has an effort direct from the free kick, save by Julian Speroni.
22:32 Booking The referee cautions Danny Butterfield for unsporting behaviour.
22:07 Danny Butterfield gives away a free kick for an unfair challenge on Adam Johnson.
19:44 Handball decision goes against Gary O'Neil. Danny Butterfield takes the free kick.
19:19 Effort from inside the area by Marcus Bent misses to the right of the target.
17:39 Free kick awarded for a foul by Claude Davis on Marcus Bent. Direct free kick taken by Justin Hoyte.
16:11 David Wheater concedes a free kick for a foul on Claude Davis. Julian Speroni takes the free kick.
15:15 Inswinging corner taken by Gary O'Neil from the left by-line played to the near post, Shaun Derry manages to make a clearance.
14:27 Right-footed shot by Isaiah Osbourne went wide right of the post.
11:37 Neil Danns has a shot on goal from outside the box which misses left.
8:16 Freddie Sears takes a shot. Save by Brad Jones.
5:07 Leroy Lita is ruled offside. Direct free kick taken by Julian Speroni.
4:25 Corner taken by Darren Ambrose from the right by-line, Close range headed effort by Claude Davis misses to the right of the goal.
4:03 Inswinging corner taken from the right by-line by Darren Ambrose, Jonathan Grounds makes a clearance.
3:14 Darren Ambrose fouled by Rhys Williams, the ref awards a free kick. Danny Butterfield restarts play with the free kick.
1:22 David Wheater challenges Alan Lee unfairly and gives away a free kick. Shot comes in from Darren Ambrose from the free kick.
0:00 The match begins.
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