The home skipper was lucky to escape with only a yellow card for bringing down the Athletic midfielder, but the Posh relief was short lived as Jackson made no mistake from the spot.
Racon's strike from 12 yards extended the Charlton lead soon after, with two more goals in the space of three minutes just before the break effectively ending the contest.
First, Jackson finished after a Paul Benson shot deflected into his path off Kelvin Langmead, then Martin cut inside and fired home to leave Posh heading to the dressing rooms at the break with an accompaniment of a chorus of boos.
McCann's 25-yard free-kick provided some hope, but Nyatanga's mistake allowed Benson to give Martin a simple chance for the fifth.
Peterborough United manager Gary Johnson told BBC Radio Cambridgeshire: "I've asked the players to come and see me tomorrow. We'll watch the video, so they can see they're own performances.
"They can let me know whether they're willing to make a big effort to turn this around or whether some of them might need to look elsewhere for January.
"People have got to decide if they're up for it or not. I'm up for it, and some of the lads have got to tell me whether they're up for it."
Charlton Athletic manager Phil Parkinson told BBC London 94.9: "To win so convincingly away from home is something you don't usually expect, but we're pleased.
"In the first half, I thought we put in an outstanding performance and in the second it was all about being professional.
"Unfortunately we conceded a goal but then we killed it off with a fifth one."
Live text and stats
Saturday, 13 November 2010
Npower League One
Jackson (pen) 15
16 Bennett (Mendez-Laing 46)
07 Wesolowski (Davies 46)
11 McCann yellow card
12 Mackail-Smith (Hibbert 46)
06 Semedo yellow card (Reid 90)
07 Wagstaff (McCormack 56)
08 Racon yellow card
23 Anyinsah (Martin 19 yellow card)
14 A Sodje
Ref: FosterAtt: 7,477
Attempts on target
Attempts off target
90:00+4:12 The match has reached full-time.
90:00+2:18 The ball is crossed by Mark Little, Dave Hibbert takes a shot. Save by Rob Elliot.
90:00+0:42 Unfair challenge on Nathaniel Mendez-Laing by Kyel Reid results in a free kick. Grant McCann restarts play with the free kick.
89:21 Substitution (Charlton) makes a substitution, with Kyel Reid coming on for Jose Vitor Semedo.
88:49 Dave Hibbert takes a shot. Rob Elliot makes a save.
87:22 Booking Jose Vitor Semedo is shown a yellow card for time wasting.
86:36 Free kick awarded for an unfair challenge on Johnnie Jackson by Nathaniel Mendez-Laing. Jose Vitor Semedo restarts play with
the free kick.
86:12 Booking Booking for Lee Martin for unsporting behaviour.
83:36 Lee Tomlin delivers the ball, save made by Rob Elliot.
80:09 Free kick awarded for a foul by Dave Hibbert on Christian Dailly. Rob Elliot takes the direct free kick.
78:50 Aaron Mclean challenges Therry Racon unfairly and gives away a free kick. Free kick taken by Rob Elliot.
75:36 Centre by Lee Tomlin, Christian Dailly makes a clearance.
71:59 Arron Davies delivers the ball, clearance by Gary Doherty.
71:18 Corner taken right-footed by Arron Davies, clearance made by Christian Dailly.
71:11 The ball is delivered by Lee Tomlin.
70:10 Effort from outside the penalty box by Lee Martin goes wide left of the goal.
70:02 Paul Benson sends in a cross, Mark Little manages to make a clearance.
66:01 Corner taken left-footed by Johnnie Jackson.
64:51 GOAL - Lee Martin:Peterborough 1 - 5 Charlton Goal scored by Lee Martin from inside the penalty area to the bottom right corner of the goal. Peterborough 1-5 Charlton.
64:19 Lee Tomlin delivers the ball, clearance made by Gary Doherty.
63:58 Centre by Nathaniel Mendez-Laing, Gary Doherty manages to make a clearance.
62:35 The official flags Aaron Mclean offside. Direct free kick taken by Rob Elliot.
58:20 A cross is delivered by Dave Hibbert.
56:59 Lee Tomlin sends in a cross, Nathaniel Mendez-Laing challenges Alan McCormack unfairly and gives away a free kick. Rob Elliot
takes the direct free kick.
55:54 Jose Vitor Semedo fouled by Nathaniel Mendez-Laing, the ref awards a free kick. Johnnie Jackson takes the direct free kick.
55:14 Substitution Scott Wagstaff leaves the field to be replaced by Alan McCormack.
53:36 GOAL - Grant McCann:Peterborough 1 - 4 Charlton Grant McCann finds the net with a shot from the free kick from 12 yards. Peterborough 1-4 Charlton.
52:33 The referee penalises Paul Benson for handball.
51:53 Grant McCann takes the direct free kick.
51:53 Booking The referee shows Therry Racon a yellow card.
51:49 Free kick awarded for an unfair challenge on Nathaniel Mendez-Laing by Matt Fry.
51:28 The referee penalises Therry Racon for handball. Aaron Mclean takes the direct free kick.
47:18 Corner from left by-line taken by Grant McCann.
47:05 Grant McCann takes a shot. Simon Francis manages to make a clearance.
47:00 The ball is delivered by Nathaniel Mendez-Laing, Simon Francis makes a clearance.
45:33 The ball is crossed by Aaron Mclean, save by Rob Elliot.
45:01 The referee blows his whistle to start the second half.
45:01 Substitution Arron Davies is brought on as a substitute for James Wesolowski.
45:01 Substitution Nathaniel Mendez-Laing replaces Ryan Bennett.
45:01 Substitution Dave Hibbert on for Craig Mackail-Smith.
45:00+3:10 The ref blows to end the first period.
45:00+2:01 Foul by Christian Dailly on Aaron Mclean, free kick awarded. Grant McCann restarts play with the free kick.
45:00+0:47 Lee Tomlin has a shot on goal from outside the box which misses right.
42:52 Save by Joe Lewis. The ball is sent over by Marcus Williams, Effort on goal by Ryan Bennett from just inside the penalty area
goes harmlessly over the target. Free kick awarded for a foul by Johnnie Jackson on Ryan Bennett. Grant McCann restarts play
with the free kick.
41:18 The ball is swung over by Lewin Nyatanga, Gary Doherty manages to make a clearance.
39:03 Scott Wagstaff takes a shot. Blocked by Aaron Mclean.
38:29 Corner taken by Simon Francis from the right by-line, clearance made by Lewin Nyatanga.
38:16 The ball is crossed by Ryan Bennett, save by Rob Elliot.
37:04 The assist for the goal came from Johnnie Jackson.
37:04 GOAL - Lee Martin:Peterborough 0 - 4 Charlton Lee Martin scores a goal from inside the penalty area to the bottom right corner of the goal. Peterborough 0-4 Charlton.
35:44 GOAL - Johnnie Jackson:Peterborough 0 - 3 Charlton Johnnie Jackson finds the net with a goal from inside the penalty box to the top right corner of the goal. Peterborough 0-3
34:25 Simon Francis takes a outswinging corner from the right by-line played to the near post.
33:20 James Wesolowski crosses the ball, save made by Rob Elliot.
32:00 The ball is crossed by Craig Mackail-Smith, Gary Doherty manages to make a clearance.
31:18 Lee Martin produces a cross.
31:03 The ball is delivered by Johnnie Jackson, Lewin Nyatanga manages to make a clearance.
29:08 Lee Martin fouled by Marcus Williams, the ref awards a free kick. Simon Francis takes the free kick.
27:45 Craig Mackail-Smith fouled by Matt Fry, the ref awards a free kick. Free kick taken by Grant McCann.
26:23 Corner from the left by-line taken by Grant McCann, Gary Doherty makes a clearance.
26:17 The ball is sent over by Mark Little, Simon Francis makes a clearance.
24:58 The assist for the goal came from Lee Martin.
24:58 GOAL - Therry Racon:Peterborough 0 - 2 Charlton Therry Racon fires in a goal from just outside the box to the top right corner of the goal. Peterborough 0-2 Charlton.
24:16 Headed effort from the edge of the area by Aaron Mclean goes wide of the right-hand post.
22:13 Free kick awarded for an unfair challenge on Lee Martin by Grant McCann. Direct free kick taken by Simon Francis.
21:30 Outswinging corner taken by Grant McCann, clearance by Paul Benson.
20:55 Lee Martin challenges Kelvin Langmead unfairly and gives away a free kick. Lewin Nyatanga takes the free kick.
20:15 Lee Martin takes a shot. Save by Joe Lewis.
18:32 Substitution Lee Martin is brought on as a substitute for Joe Anyinsah.
17:33 Grant McCann crosses the ball, save by Rob Elliot.
17:24 The ball is swung over by Lee Tomlin, Gary Doherty makes a clearance.
17:01 Corner from the left by-line taken by Grant McCann, Christian Dailly manages to make a clearance.
16:23 Corner taken right-footed by Grant McCann from the right by-line, James Wesolowski takes a shot. Save by Rob Elliot.
16:09 James Wesolowski takes a shot. Clearance by Therry Racon.
14:12 GOAL - Johnnie Jackson:Peterborough 0 - 1 Charlton Power penalty scored by Johnnie Jackson. Peterborough 0-1 Charlton.
13:04 Booking Grant McCann is cautioned by the ref for unsporting behaviour.
12:55 Foul by Grant McCann on Scott Wagstaff, Penalty awarded.
12:08 Free kick awarded for an unfair challenge on Aaron Mclean by Gary Doherty. Direct free kick taken by Grant McCann.
10:52 Grant McCann takes a inswinging corner.
9:31 Corner from the right by-line taken by Grant McCann, Ryan Bennett produces a left-footed shot from deep inside the penalty
box which goes wide of the left-hand upright.
9:16 Lee Tomlin takes a shot. Save by Rob Elliot.
8:20 Free kick awarded for an unfair challenge on Scott Wagstaff by Grant McCann. Direct free kick taken by Johnnie Jackson.
7:40 The ball is delivered by Matt Fry, Paul Benson produces a left-footed shot from the edge of the box and misses to the left
of the target.
6:28 Shot by Scott Wagstaff from outside the box goes high over the crossbar.
5:25 Aaron Mclean has an effort at goal from outside the penalty box which goes wide right of the target.
4:47 Simon Francis produces a cross, clearance by Kelvin Langmead.
3:25 Mark Little gives away a free kick for an unfair challenge on Johnnie Jackson. Direct free kick taken by Matt Fry.
2:57 Scott Wagstaff produces a cross, Kelvin Langmead manages to make a clearance.
1:35 Johnnie Jackson takes a shot. Joe Lewis makes a save.
1:20 Therry Racon takes a shot. Clearance by Kelvin Langmead.
0:00 The referee gets the match started.
Live text and data provided by The Press Association.
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