Match ends, Brentford 1, Bolton Wanderers 0.
Brentford must use the "momentum" they have gained by winning their "final" against Bolton to climb away from relegation danger, says head coach Thomas Frank.
Neal Maupay netted the only goal as the Bees ended their six-match winless run to move six points clear of the drop zone.
Maupay fired home his 14th goal of the season just after the hour, earning the Bees only their second win since Frank succeeded Dean Smith in mid-October.
It was no more than the Dane's side deserved as they dominated their struggling visitors, who have themselves now gone 13 games without victory.
Two Championship managers have lost their jobs this month, and Frank's own position has been the subject of speculation.
"One of the most difficult things in life is when you put a lot of work into things and don't get the reward, but today the players, staff and fans believed, stuck together and worked hard and got what they deserved," he said.
"We knew this was a final today because we could see there weren't many points between us and the relegation area.
"No-one said it but we knew and we stayed focused to get the win we deserved.
"It was a solid performance. We know we have more, but sometimes you need that win to push you on to get there.
"The win will give us momentum and if we can take a good performance to Bristol City we will give ourselves a good chance of getting something.
"Seeing the players after the win reminds us why we love this game so much and why losing is so annoying. It's a good habit we want to keep."
Bolton registered just one shot on target and were indebted to goalkeeper Ben Alnwick for preventing a heavier defeat at Griffin Park.
Brentford heaped early pressure on their visitors, with Ollie Watkins twice going close and the lively Said Benrahma forcing a smart save from Alnwick.
Alnwick kept out another volleyed attempt from Benrahma later in the first half, while it took Bolton half an hour to register an attempt at goal, with Gary O'Neil's effort deflected over the bar.
Maupay finally made the breakthrough in the 62nd minute, pouncing on Benrahma's knockdown and rifling into the roof of the net from 15 yards.
Bolton could have salvaged a point as substitute Craig Noone fired a cross-shot just wide, while Alnwick came up for an injury-time corner, but his header was off target.
Bolton boss Phil Parkinson:
"It was a very tight game with very little in it. The quality of cross or desire in the six-yard box was not quite there to get us a goal but we've been in so many tight games.
"Brentford started better but we grew into the first half and got some good crosses in, but in the second half one moment of quality separates the teams.
"Our lads never give in and you have to give credit for that on this run. Not for one moment do I question this group for their character, endeavour and desire.
"It's an exciting time to be involved when games come thick and fast and if you get beat you have to hope that those defeats don't damage morale, but I am looking at a group giving everything for the shirt and that's great to see."
- 6MephamBooked at 40minsSubstituted forBarbetat 69'minutes
- 11WatkinsSubstituted forCanosat 88'minutes
- 21BenrahmaSubstituted forJudgeat 80'minutes
- 14Da Silva
- 16OlkowskiSubstituted forNooneat 69'minutes
- 31WheaterBooked at 72mins
- 19O'NeilBooked at 90mins
- 4LoweBooked at 14mins
- 11BuckleySubstituted forMagennisat 76'minutes
- 9DoidgeSubstituted forDonaldsonat 82'minutes
- James Linington
- Shots on Target
Second Half ends, Brentford 1, Bolton Wanderers 0.
Gary O'Neil (Bolton Wanderers) is shown the yellow card for a bad foul.
Alan Judge (Brentford) wins a free kick in the attacking half.
Foul by Gary O'Neil (Bolton Wanderers).
Attempt missed. Ben Alnwick (Bolton Wanderers) header from the centre of the box misses to the right. Assisted by Craig Noone following a corner.
Attempt blocked. Andrew Taylor (Bolton Wanderers) left footed shot from the centre of the box is blocked. Assisted by Marc Wilson.
Corner, Bolton Wanderers. Conceded by Moses Odubajo.
Corner, Bolton Wanderers. Conceded by Julian Jeanvier.
Rico Henry (Brentford) wins a free kick in the defensive half.
Foul by Craig Noone (Bolton Wanderers).
Offside, Bolton Wanderers. Andrew Taylor tries a through ball, but Clayton Donaldson is caught offside.
Substitution, Brentford. Sergi Canos replaces Ollie Watkins.
Attempt missed. Craig Noone (Bolton Wanderers) left footed shot from the right side of the box is close, but misses to the left. Assisted by Josh Magennis.
Offside, Brentford. Ezri Konsa Ngoyo tries a through ball, but Alan Judge is caught offside.
Ezri Konsa Ngoyo (Brentford) wins a free kick in the defensive half.
Foul by Sammy Ameobi (Bolton Wanderers).
Yoann Barbet (Brentford) wins a free kick in the attacking half.
Foul by Clayton Donaldson (Bolton Wanderers).
Neal Maupay (Brentford) wins a free kick in the attacking half.