François Zoko scored twice for Stevenage as they came from behind to beat Brentford at The Lamex Stadium.
The Bees went ahead early on through Clayton Donaldson but were pegged back immediately after an error from David Button.
Zoko scored what proved to be the winner soon after and Stevenage held on despite Brentford’s best efforts in the second half.
Brentford started brightly and could have been ahead inside a minute.
Shaleum Logan crossed from the right and Marcello Trotta rose highest, his header was well saved by Chris Day and the goalkeeper then denied Alan McCormack from the follow-up.
Harlee Dean headed over when well-placed soon after and an Adam Forshaw free kick was deflected over the bar.
Stevenage had been on the back foot in the early stages but almost got their noses in front when the ball was played in to the box on the left side, Lucas Akins fed it back to Zoko but Brentford got bodies around the ball and scrambled it away.
The early goal Brentford had been threatening came after 13 minutes – Jonathan Douglas played a one-two with Logan and then another with Trotta, he raced through and lifted the ball over Day, Donaldson bundled it over the line to make sure.
However, Brentford’s hard work was undone within two minutes.
David Button inexplicably dithered on the ball and was tackled by Zoko, the ball rolled over the line and Stevenage were level.
That gave the home side, who were not in the game at that point, a boost and they grew in confidence.
Button saved a low Filipe Morais shot and a Jordan Burrows header while Day saved from Trotta at the other end.
Stevenage completed their comeback when they went ahead just before the half hour mark.
Brentford cleared a corner but the ball was played in to the inside left channel, Akins cut it back and Zoko converted from close range.
Button saved from Akins and the attacker then had a shot blocked while a Morais effort was also kept out by the Brentford defence.
Stevenage were on the front foot and Brentford were trying to stay in the game, a Jon Ashton header was scrambled away by The Bees as half time approached.
But Brentford showed their attacking play would trouble the hosts.
They came close to levelling when a Logan shot clipped the top of the crossbar and Donaldson got in behind soon after on to a Trotta pass, his low shot was well saved by Day.
And they continued to hold the upper hand at the start of the second half.
Douglas fired a low free kick wide and Day made a fine save to keep out a Donaldson chip after a quick break involving McCormack, Toumani Diagouraga and Forshaw.
McCormack fired well over soon after when he picked up a Trotta pass and Forshaw curled a free kick just wide.
Button held on to a Jimmy Smith shot but was a spectator for large periods as most of the action was at the other end.
Donaldson could have levelled for The Bees when they broke quickly from a corner, Button’s throw released Logan, who set the striker in behind, he rounded Day but the angle was tight and he fired in to the side netting.
Stevenage’s defence was resolute and Brentford were struggling to find a way through.
The hosts were also dangerous on the break.
Zoko headed wide when well-placed and Dean blocked a shot from the striker after Forshaw was robbed in midfield.
The hosts saw the game out with few late alarms and Brentford were beaten again.
Stevenage: Day; Gray, Ashton, Jones, Hartley; Akins (sub Tounkara 65 mins), Smith, Heslop, Morais (sub Andrade 78 mins); Zoko, Burrow (sub Dunne 55 mins)
Subs (not used): Arnold, Wedgbury, Cowan, Tansey
Bookings: Heslop (69 mins), Gray (90 mins)
Brentford: Button; Logan (sub Saville 83 mins), Dean, Taylor (sub Craig 50 mins), Bidwell; Forshaw, Douglas, Diagouraga, McCormack; Donaldson, Trotta (sub Norris 70 mins)
Subs (not used): Lee, Nugent, Fillo, El Alagui
Bookings: Diagouraga (45 mins) (second of season), Dean (60 mins) (third of season), Bidwell (90 mins) (second of season)
By Chris Wickham