Scott Boden's injury-time goal gave Chesterfield victory over Southend and moved them to within a point of League Two leaders Port Vale.
Danny Whitaker opened the scoring from the penalty spot after Graham Coughlan had brought down Jack Lester.
The Shrimpers got themselves level when Anthony Grant found the bottom corner.
Southend twice hit the woodwork through Matt Paterson and Louie Soares, but it was Boden who snatched the win for the hosts from close range at the death.
Chesterfield manager John Sheridan told BBC Radio Sheffield: "I think we were fortunate to win the game, I'll admit that.
"It's typical of the players, it's full credit to the players that they've gone right to the end and they've got the reward.
"I think you'd admit we are quite exciting to watch, well at home we are, and we've been creating problems for teams. Teams are going to come and we make it very difficult."
Southend United manager Paul Sturrock told BBC Essex: "Football kicks you in the teeth at times and if you don't take your chances that's exactly what happens.
"I thought for 85 minutes we were absolutely fantastic, but the last five or six we tried to saunter out the game and we've paid the penalty for it.
"If there's anybody to blame for what happened today, I'm going to have to put my hand up because I do feel the substitutions were maybe made at the wrong time, but that's with hindsight."
Live text and stats
Saturday, 9 October 2010
Npower League Two
Whitaker (pen) 27
08 Niven yellow card
24 Clay (Morris 61)
09 Davies (Bowery 82)
14 Lester (Boden 82)
09 Paterson (Jarvis 79)
22 Fairhurst (Hall 82)
Ref: CooteAtt: 6,557
Attempts on target
Attempts off target
90:00+4:58 The referee signals the end of the game.
90:00+2:43 Outswinging corner taken by Danny Whitaker, Graham Coughlan makes a clearance. The assist for the goal came from Derek Niven.
90:00+2:43 GOAL - Scott Boden:Chesterfield 2 - 1 Southend Scott Boden finds the back of the net with a goal from close in low into the middle of the goal. Chesterfield 2-1 Southend.
89:48 Unfair challenge on Chris Barker by Jordan Bowery results in a free kick. Glenn Morris takes the direct free kick.
88:51 Drew Talbot delivers the ball, Chris Barker manages to make a clearance.
88:00 Free kick awarded for an unfair challenge on Derek Niven by Ryan Hall. Tommy Lee takes the direct free kick.
87:26 The ball is sent over by Jordan Bowery, clearance by Chris Barker.
86:16 Effort from deep inside the area by Scott Griffiths misses to the right of the target.
85:32 Jack Hunt delivers the ball, Anthony Grant makes a clearance.
83:44 Centre by Jack Hunt, clearance made by Chris Barker. Danny Whitaker takes the outswinging corner, Peter Gilbert makes a clearance.
81:15 Sean Clohessy sends in a cross, Louie Soares has a headed effort at goal from deep inside the area missing to the left of
81:15 Substitution Waide Fairhurst leaves the field to be replaced by Ryan Hall.
81:15 Substitution Jordan Bowery comes on in place of Craig Davies.
81:15 Substitution Scott Boden joins the action as a substitute, replacing Jack Lester.
79:32 The ball is swung over by Drew Talbot. Scott Griffiths crosses the ball, Shot on goal by Jack Hunt from just inside the area
clears the crossbar.
78:26 The ball is delivered by Ian Morris, Close range header by Simon Ford goes over the bar.
78:26 Substitution Nathaniel Jarvis comes on in place of Matthew Paterson.
77:17 Michael Timlin challenges Drew Talbot unfairly and gives away a free kick. Free kick crossed right-footed by Danny Whitaker
from right channel, Graham Coughlan manages to make a clearance.
74:22 Effort from the edge of the area by Jack Lester goes wide of the left-hand post.
73:26 Centre by Chris Barker, Dwayne Mattis manages to make a clearance.
71:57 Sean Clohessy crosses the ball, save made by Tommy Lee.
70:36 Ian Morris concedes a free kick for a foul on Sean Clohessy. Free kick taken by Glenn Morris.
69:21 Effort from just inside the penalty box by Louie Soares strikes the post. Matthew Paterson produces a header from inside the
area that goes over the bar.
63:00 The ball is delivered by Waide Fairhurst, save by Tommy Lee.
61:25 Sean Clohessy delivers the ball, Dwayne Mattis manages to make a clearance.
60:10 Substitution Ian Morris on for Craig Clay.
58:42 Unfair challenge on Anthony Grant by Danny Whitaker results in a free kick. Sean Clohessy delivers the ball, Matthew Paterson
takes a shot. Save made by Tommy Lee. Corner from the right by-line taken by Louie Soares, save made by Tommy Lee.
55:36 A cross is delivered by Matthew Paterson.
55:26 Peter Gilbert delivers the ball.
54:07 Shot by Craig Clay from 25 yards. Save by Glenn Morris.
53:11 The ball is delivered by Jack Hunt, Danny Whitaker has an effort at goal from just inside the box that misses to the right
of the goal. Corner taken by Danny Whitaker from the right by-line, Graham Coughlan makes a clearance.
51:20 Free kick awarded for a foul by Scott Griffiths on Josh Simpson. Michael Timlin delivers the ball, Chris Barker takes a shot.
Save by Tommy Lee.
50:31 Foul by Danny Whitaker on Anthony Grant, free kick awarded. The free kick is delivered left-footed by Michael Timlin from
49:35 Free kick awarded for an unfair challenge on Drew Talbot by Louie Soares. Direct free kick taken by Simon Ford.
47:57 The ball is swung over by Craig Davies, clearance made by Anthony Grant. Corner taken by Danny Whitaker from the right by-line.
Centre by Derek Niven, Glenn Morris makes a save.
46:37 Drew Talbot produces a cross, Shot from deep inside the area by Jack Lester clears the crossbar.
46:15 Matthew Paterson delivers the ball, save by Tommy Lee.
45:36 Unfair challenge on Jack Hunt by Louie Soares results in a free kick. Jack Hunt takes the direct free kick.
45:01 The game restarts for the second half.
45:00+1:10 The ref blows to signal half-time.
44:59 Craig Davies takes a shot. Sean Clohessy gets a block in.
42:45 The ball is swung over by Louie Soares, Effort from deep inside the area by Josh Simpson misses to the left of the target.
42:06 The ball is sent over by Louie Soares, Derek Niven makes a clearance. Effort on goal by Graham Coughlan from just inside the
box goes harmlessly over the target.
40:38 Free kick awarded for a foul by Derek Niven on Anthony Grant. Josh Simpson takes the direct free kick. The ball is swung over
by Sean Clohessy, clearance by Derek Niven. Louie Soares takes the outswinging corner, clearance by Derek Niven.
40:38 Booking Derek Niven shown a yellow card.
39:19 Centre by Louie Soares.
38:36 The ball is crossed by Michael Timlin, Jack Hunt gets a block in. Inswinging corner taken right-footed by Louie Soares, Dwayne
Mattis makes a clearance.
37:32 Craig Clay gives away a free kick for an unfair challenge on Matthew Paterson. Free kick crossed left-footed by Sean Clohessy,
Dwayne Mattis manages to make a clearance.
35:30 The ball is delivered by Sean Clohessy, clearance by Scott Griffiths. Outswinging corner taken by Louie Soares, clearance
by Dwayne Mattis.
35:30 GOAL - Anthony Grant:Chesterfield 1 - 1 Southend A goal is scored by Anthony Grant from inside the area to the bottom left corner of the goal. Chesterfield 1-1 Southend.
33:20 Sean Clohessy delivers the ball, free kick awarded for a foul by Simon Ford on Louie Soares. Josh Simpson takes the free kick.
Effort from 20 yards by Michael Timlin. Jack Lester gets a block in. Inswinging corner taken by Louie Soares, clearance made
by Scott Griffiths.
32:14 Craig Davies gives away a free kick for an unfair challenge on Graham Coughlan. Glenn Morris takes the free kick.
31:11 Craig Davies takes a shot. Louie Soares gets a block in. Short corner taken by Danny Whitaker from the right by-line. The
ball is swung over by Danny Whitaker.
30:56 Danny Whitaker produces a cross, clearance made by Graham Coughlan.
27:26 Jack Hunt fouled by Louie Soares, the ref awards a free kick. Jack Hunt takes the free kick.
26:01 Foul by Graham Coughlan on Jack Lester, Penalty awarded. Jack Lester provided the assist for the goal.
26:01 GOAL - Danny Whitaker:Chesterfield 1 - 0 Southend Penalty scored by Danny Whitaker. Chesterfield 1-0 Southend.
23:59 Craig Davies produces a right-footed shot from deep inside the penalty box which goes wide of the right-hand upright.
23:06 The ball is swung over by Josh Simpson, save by Tommy Lee.
22:16 The ball is swung over by Scott Griffiths, Craig Davies takes a shot. Comfortable save by Glenn Morris.
19:06 Craig Davies crosses the ball, clearance made by Chris Barker.
18:09 The ball is swung over by Jack Lester.
15:48 Shot by Danny Whitaker from deep inside the penalty area misses to the left of the goal.
12:00 Josh Simpson delivers the ball, clearance by Scott Griffiths. Louie Soares takes the outswinging corner, save made by Tommy
11:36 The ball is sent over by Peter Gilbert, Dwayne Mattis makes a clearance.
10:45 Louie Soares decides to take a short corner.
8:25 Scott Griffiths delivers the ball.
7:36 Drew Talbot produces a cross, save made by Glenn Morris.
Correction - 3:53 Inswinging corner taken by Louie Soares, clearance by Craig Davies.
3:53 Corner taken by Josh Simpson from the left by-line, Craig Davies makes a clearance.
2:59 The ball is sent over by Craig Clay, Dwayne Mattis takes a shot. Save by Glenn Morris.
2:15 Free kick awarded for an unfair challenge on Danny Whitaker by Graham Coughlan. Danny Whitaker crosses the ball in from the
free kick, clearance by Sean Clohessy. Danny Whitaker decides to take a short corner.
0:00 The ref blows the whistle to start the match.
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