Craig Dawson continued his fine start to life at the Reebok Stadium as Bolton left Peterborough in trouble at the bottom of the Championship.
Bolton are unbeaten in five games since Dawson arrived on loan from West Brom in the January transfer window.
The defender scored twice in Saturday's 4-1 win against Hull and scored the only goal on Tuesday, heading in from Jay Spearing's early corner.
Peterborough are now four points from safety at the foot of the table.
Bolton are unbeaten in five Championship matches, and are in their highest league position of the season in 10th
Improving Bolton are up to 10th place, with Dougie Freedman's side seven points off the play-off places with 12 matches remaining.
They took the lead when Spearing's corner from the left was cleared, but his second delivery found Dawson who headed home.
Wanderers winger Lee Chung-yong forced Posh goalkeeper Bobby Olejnik into a fine diving save as Peterborough offered little attacking threat.
The visitors enjoyed plenty of possession as the final whistle approached but never seriously tested Bolton keeper Adam Bogdan as they slipped to a second straight defeat.
Bolton manager Dougie Freedman:
"For me the signs were there that the training ground work we do day-in, day-out is paying off.
"To a man, we worked very hard and made it difficult for Peterborough to have any clear-cut chances.
"Our defensive display has got to be talked about because we were asked a lot of questions."
Peterborough boss Darren Ferguson:
"We need six wins and we need them quick, but my players can win games. We can win games against any team in this league; we've shown that.
"This is what you're in the game for. This is the business end of the season.
"It's the bit I enjoy and it's the bit the players have got to enjoy.
"They have to enjoy the challenge of trying to keep the club up because the difference - and no disrespect to League One - between this league and the one below is absolutely gigantic."
- 01 Bogdan
- 03 Alonso Booked
- 12 Knight
- 15 Dawson
- 18 Ricketts
- 16 M Davies (Holden - 24' )
- 20 Spearing
- 21 Pratley
- 27 Lee
- 09 Ngog (K Davies - 72' )
- 19 Sordell (C Davies - 58' )
- 24 Lonergan
- 31 Wheater
- 22 Holden
- 42 De Ridder
- 44 Medo
- 14 K Davies
- 28 C Davies
- 01 Olejnik
- 05 Zakuani
- 19 Little (Alcock - 85' )
- 06 Bostwick
- 07 Swanson (Newell - 71' )
- 11 McCann
- 14 Rowe
- 23 Petrucci (Payne - 42' )
- 44 Mendez-Laing
- 08 Tomlin
- 34 Gayle
- 13 Day
- 03 Alcock
- 04 Brisley
- 17 Newell
- 18 Ferdinand
- 26 Payne
- 37 McDonald
Live Text Commentary
Full Time The game is over, as the referee blows his whistle.90:00 +3:24
Craig Davies produces a right-footed shot from just outside the box that goes wide right of the target.90:00 +2:01
Michael Bostwick takes the free kick.90:00 +2:01 Booking
Booking Marcos Alonso goes into the referee's book for unsporting behaviour.90:00 +1:48
Marcos Alonso gives away a free kick for an unfair challenge on Dwight Gayle.90:00 +1:34
Kevin Davies concedes a free kick for a foul on Gabriel Zakuani. Gabriel Zakuani takes the free kick.86:07
Joe Newell challenges Samuel Ricketts unfairly and gives away a free kick. Adam Bogdan takes the free kick.84:22
Marcos Alonso takes the direct free kick.84:22 Substitution
Substitution Craig Alcock is brought on as a substitute for Mark Little.84:22
Corner taken by Grant McCann from the right by-line, Foul by Nathaniel Mendez-Laing on Stuart Holden, free kick awarded.83:07
Outswinging corner taken right-footed by Lee Tomlin from the left by-line.77:47
Marcos Alonso has a headed effort from close range and clears the bar.77:25
Foul by Michael Bostwick on Craig Davies, free kick awarded. Free kick taken by Craig Davies.75:27
Tommy Rowe takes a shot. Save by Adam Bogdan.73:13
Marcos Alonso has an effort at goal from just outside the box which goes wide of the right-hand post.72:51
Craig Davies takes a shot. Blocked by Mark Little.71:30 Substitution
Substitution Kevin Davies is brought on as a substitute for David Ngog.70:04 Substitution
Substitution (Peterborough) makes a substitution, with Joe Newell coming on for Danny Swanson.70:04
Shot from just outside the box by David Ngog misses to the right of the goal.67:17
Corner taken short by Danny Swanson.
Outswinging corner taken right-footed by Jay Spearing.64:38
Lee Tomlin gives away a free kick for an unfair challenge on Samuel Ricketts. Samuel Ricketts takes the free kick.64:03
Shot by Nathaniel Mendez-Laing from deep inside the penalty area misses to the left of the goal.62:49
Danny Swanson has an effort at goal from outside the box which goes wide left of the goal.60:03
Darren Pratley concedes a free kick for a foul on Danny Swanson. Free kick taken by Gabriel Zakuani.57:21 Substitution
Substitution (Bolton) makes a substitution, with Craig Davies coming on for Marvin Sordell.56:22
Corner from left by-line taken by Grant McCann.52:56
Mark Little fouled by David Ngog, the ref awards a free kick. Free kick taken by Robert Olejnik.52:23
Free kick awarded for a foul by Grant McCann on Marvin Sordell. Samuel Ricketts takes the direct free kick.50:40
Unfair challenge on Stuart Holden by Dwight Gayle results in a free kick. Jay Spearing takes the direct free kick.50:05
Zat Knight fouled by Dwight Gayle, the ref awards a free kick. Free kick taken by Marcos Alonso.45:33
Jay Spearing takes the inswinging corner, save made by Robert Olejnik. Darren Pratley produces a right-footed shot from just outside the area that goes harmlessly over the bar.45:01
The referee starts the second half.45:00 +4:16 Half time
Half Time The whistle is blown to end the first half.45:00 +0:46
Inswinging corner taken from the left by-line by Lee Tomlin.44:19
The official flags Marvin Sordell offside. Free kick taken by Michael Bostwick.41:36 Substitution
Substitution Davide Petrucci goes off and Jack Payne comes on.36:55
Effort from outside the penalty box by Marcos Alonso goes wide right of the target.33:55
Outswinging corner taken from the right by-line by Jay Spearing, Craig Dawson takes a shot. Clearance made by Mark Little. Headed effort from inside the area by Marvin Sordell misses to the right of the target.32:33
Free kick awarded for an unfair challenge on Dwight Gayle by Craig Dawson. Grant McCann takes the free kick.30:09
David Ngog gives away a free kick for an unfair challenge on Davide Petrucci. Direct free kick taken by Davide Petrucci.29:17
Unfair challenge on Zat Knight by Lee Tomlin results in a free kick. Free kick taken by Adam Bogdan.24:54
Foul by Nathaniel Mendez-Laing on Marcos Alonso, free kick awarded. Direct free kick taken by Marcos Alonso.23:31 Substitution
Substitution Mark Davies goes off and Stuart Holden comes on.17:12
Chung-Yong Lee takes a shot. Save by Robert Olejnik. Jay Spearing takes the outswinging corner, free kick awarded for an unfair challenge on Gabriel Zakuani by Marvin Sordell. Robert Olejnik takes the free kick.14:02
Danny Swanson fouled by Samuel Ricketts, the ref awards a free kick. Lee Tomlin has a direct shot on goal from the free kick, save by Adam Bogdan.12:47
Effort on goal by Chung-Yong Lee from inside the area goes harmlessly over the bar.11:41
Marvin Sordell takes a shot. Blocked by Danny Swanson.10:25
Chung-Yong Lee handles the ball and concedes a free kick. Free kick taken by Robert Olejnik.8:29
Effort on goal by Marvin Sordell from just inside the box goes harmlessly over the target.6:48
Free kick awarded for an unfair challenge on David Ngog by Davide Petrucci. Samuel Ricketts restarts play with the free kick.6:28
Shot by Lee Tomlin.5:33
Free kick awarded for a foul by Mark Davies on Davide Petrucci. Lee Tomlin takes the direct free kick.4:57
Dwight Gayle takes a shot. Save by Adam Bogdan.4:08
The assist for the goal came from Jay Spearing.4:08 Goal scored
Goal! - Craig Dawson - Bolton 1 - 0 Peterboro Craig Dawson finds the net with a headed goal from close range. Bolton 1-0 Peterborough.3:22
Inswinging corner taken right-footed by Jay Spearing from the left by-line to the near post, Mark Little manages to make a clearance. Corner taken right-footed by Jay Spearing from the right by-line,0:00
The ref blows the whistle to begin the match.
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