Jennison Myrie-Williams' late equaliser rescued a point for second-placed Port Vale against Dagenham & Redbridge.
First-half chances were at a premium, although keeper Chris Lewington stopped a header from Vale top scorer Tom Pope.
The deadlock at Vale Park was finally broken on 72 minutes when home keeper Chris Neal let Luke Howell's shot slip through his legs and into the net.
But Vale took just three minutes to level when midfielder Myrie-Williams' half-volley crept in.
VIEW FROM THE DRESSING ROOM
Port Vale manager Micky Adams told BBC Radio Stoke:
"I'm disappointed. It was a flat performance from start to finish and the standard and benchmarks that we've set weren't met. I'll have to look at that.
"Any goalkeeper worth his salt would be disappointed to let in a goal like that, but Chris Neal has been magnificent all season.
"He's kept us in games, as he did on Saturday at Bradford. But that's the position he plays in. When goalkeepers make mistakes, they usually cost you goals. I've got no doubts about his character. It's just one of those unfortunate things."
Live Text Commentary
Full Time The referee brings the game to a close.90:00 +2:01
Michael Spillane gives away a free kick for an unfair challenge on Ben Williamson.90:00 +1:47
Doug Loft takes the direct free kick.90:00 +1:47 Booking
Booking Michael Spillane goes into the book for unsporting behaviour.84:17
Foul by Adam Yates on Abu Ogogo, free kick awarded. Direct free kick taken by Luke Howell.83:53
Handball by Tom Pope. Indirect free kick taken by Chris Lewington.81:43
Free kick awarded for an unfair challenge on Luke Wilkinson by Ashley Vincent. Chris Lewington takes the free kick.79:47
Shot from deep inside the area by Sam Williams goes over the bar.78:55
Ashley Vincent fouled by Michael Spillane, the ref awards a free kick. Doug Loft takes the direct free kick.76:28 Substitution
Substitution Dwight Gayle on for Billy Bingham.76:12 Substitution
Substitution Adam Yates on for Richard Duffy.74:32 Goal scored
Goal! - Jennison Myrie-Williams - Port Vale 1 - 1 Dag & Red A goal is scored by Jennison Myrie-Williams from outside the box to the bottom left corner of the goal. Port Vale 1-1 Dag & Red.73:57
Chris Shuker takes the inswinging corner,72:55
Luke Howell produces a left-footed shot from inside the area that goes over the bar.71:10 Goal scored
Goal! - Luke Howell - Port Vale 0 - 1 Dag & Red Luke Howell gets on the score sheet with a goal from long range to the bottom left corner of the goal. Port Vale 0-1 Dag & Red.70:13
Ben Williamson has an effort at goal from outside the area which goes wide right of the goal.67:53
Free kick awarded for a foul by Luke Wilkinson on Ashley Vincent. Free kick crossed by Chris Shuker, clearance by Luke Wilkinson.67:01
Sam Williams produces a right-footed shot from just outside the box that misses to the right of the goal.66:21 Substitution
Substitution Ben Williamson joins the action as a substitute, replacing Louis Dodds.64:54
The assistant referee signals for offside against Ashley Vincent. Chris Lewington restarts play with the free kick.
Corner taken left-footed by Medy Elito from the right by-line to the near post, Chris Shuker makes a clearance.63:50 Substitution
Substitution Danny Green joins the action as a substitute, replacing Josh Scott.62:20
Femi Ilesanmi is adjudged to have handled the ball. Richard Duffy takes the free kick.61:04
The referee blows for offside against Tom Pope. Free kick taken by Chris Lewington.59:01 Substitution
Substitution Chris Shuker replaces Ryan Burge.58:18
Corner taken right-footed by Medy Elito, clearance made by Doug Loft.56:44
Corner taken left-footed by Ryan Burge from the right by-line, save by Chris Lewington.52:58
Outswinging corner taken by Ryan Burge from the left by-line, save by Chris Lewington.50:58
Corner taken left-footed by Ryan Burge to the near post, clearance made by Femi Ilesanmi.48:43
Corner from the left by-line taken by Ryan Burge, save by Chris Lewington.48:07
Unfair challenge on Clayton McDonald by Sam Williams results in a free kick. Chris Neal restarts play with the free kick.45:01
The referee gets the second half started.45:00 +3:25 Half time
Half Time The referee blows for half time.45:00 +2:57
Corner taken by Ryan Burge from the left by-line.45:00 +2:31
Tom Pope takes a shot. Chris Lewington makes a save.45:00 +1:23
The ball is sent over by Tom Pope, Chris Lewington makes a save.38:09
Inswinging corner taken from the left by-line by Ryan Burge.37:46
Shot from 12 yards by Jennison Myrie-Williams. Save made by Chris Lewington.33:25
Handball by Tom Pope. Chris Lewington restarts play with the free kick.32:45
Inswinging corner taken by Ryan Burge from the right by-line played to the near post.24:24
Unfair challenge on Sam Williams by Ryan Burge results in a free kick. Sam Williams takes the direct free kick.15:37
Jennison Myrie-Williams takes a shot. Chris Lewington makes a save.9:56
Direct free kick taken by Chris Neal.9:56 Booking
Booking Booking for Sam Williams for unsporting behaviour.9:36
Sam Williams challenges Chris Neal unfairly and gives away a free kick.8:51
Inswinging corner taken left-footed by Ryan Burge played to the near post, clearance made by Femi Ilesanmi.6:08
Josh Scott fouled by Clayton McDonald, the ref awards a free kick. Strike comes in from Billy Bingham from the free kick, save by Chris Neal.0:00
The referee starts the match.
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