A third win with clean sheets in four matches for Valerien Ismael saw the Reds move both six points behind the playoffs and six points clear of the relegation zone.
It was a first win in 11 years at Pride Park for Barnsley, having lost five and drawn two there since a 3-2 victory in September 2009.
Indeed this was only Barnsley’s second victory in 18 visits to Derby, 12 of which they have lost.
It is their biggest win at Derby since October 1983 when they also won 2-0.
This result continued Derby’s winless start at Pride Park, now failing to win any of their first six home league games for the first time since 2000-2001 in the Premier League.
Barnsley have now opened the scoring in three of their last four away Championship matches (W1 D2)
Conor Chaplin opened the scoring after a dreadful error from Derby keeper David Marshall – Barnsley have won each of their last seven Championship matches in which Chaplin has scored.
Chaplin then assisted Victor Adeboyejo’s game clincher, the first Barnsley player to both score and assist in the same game since Cauley Woodrow at Fulham in February.
It is the third time Chaplin has done so for Barnsley – also in an FA Cup tie at Crewe and the league match at Blackburn in 2019-2020.
Barnsley are now unbeaten in their last 17 Championship games in which they have opened the scoring (W13 D4) last losing when breaking the deadlock at Cardiff in December 2019.
All five of Barnsley’s wins this season (3 league, 2 cup) have been accompanied with clean sheets, the first time their first five wins of a season have been accompanied with shut-outs since 2005-2006 when their first six all came with clean sheets (Swindon 2-0, Yeovil 1-0, Nottingham Forest 2-0, Gillingham 3-0, Oldham 4-0, Rotherham 1-0)
Indeed 11 of Barnsley’s last 12 victories have been accompanied by clean sheets, with the one exception, the last gasp win at Brentford to conclude 2019-2020.
As mentioned before, Chaplin’s goal came through a goalkeeping error, the seventh Reds goal this season (all comps) that did not come from a direct assist from a Barnsley player (from 15 goals scored overall)
Victor Adeboyejo scored the clincher with a fantastic effort – his first goal in 24 appearances (for three different clubs, Barnsley, Cambridge and Bristol Rovers) last netting for Rovers in November 2019. It is his first Barnsley league goal since scoring in the opening two games of 2018-2019 in League One.
Barnsley have won all three league matches without conceding when Adeboyejo has scored.
Adeboyejo is the first Barnsley substitution to score since Clarke Oduor netted the dramatic injury time goal to secure the Reds Championship survival on the final day of 2019-2020.
Derby have been Barnsley’s first away league victory in 2009-2010 and 2020-2021, whilst they were their first league win overall in 2016-2017.
This was Barnsley’s first Championship away win in November in 12 such matches.
Barnsley had only 29% ball possession, their lowest amount in 157 matches (all comps) since only having 27% against Tottenham in the League Cup in September 2017.
Barnsley had 17 shots on goal, their most in an away game since Luton in July (20)
1. Jack Walton
6. Mads Andersen
26. Michael Sollbauer
30. Michal Helik
27. Alex Mowatt
32. Matty James
7. Callum Brittain
4. Callum Styles
28. Dominik Frieser
11. Conor Chaplin
9. Cauley Woodrow
8. Herbie Kane (for James 59)
29. Victor Adeboyejo (for Frieser 77)
24. Aapo Halme (for Woodrow 90)
40. Brad Collins, 22. Clarke Oduor, 23. Elliot Simoes, 16. Luke Thomas.
1. David Marshall
16. Matt Clarke
33. Curtis Davies
5. Krystian Bielik
4. Graeme Shinnie
38. Jason Knight
12. Nathan Byrne
26. Lee Buchanan
10. Tom Lawrence
9. Martyn Waghorn
32. Wayne Rooney
7. Kamil Jozwiak (for Lawrence 79)
17. Louie Sibley (for Shinnie 58)
13. Colin Kazim-Richards (for Lawrence 79)
21. Kelle Roos, 2. Andre Wisdom, 8. Max Bird, 25. Duane Holmes.
Derby first team coach Liam Rosenior said:
"Trust me, I go home tonight and I'm not sleeping because it hurts.
"I think we were over-anxious maybe to win the battle, we've got good players and when you are low on confidence you need to remember that you are a good player.
"I can't afford as a coach to make excuses about mistakes because this is 11 games now so I have to look at myself, everyone at the club needs to look at themselves.
"This is a huge football club and we are not doing it justice. There's no way this club should be in the position it's in and I have to hold my hands up to that as well."
Sky Bet Championship results
FRIDAY 6TH NOVEMBER 2020
Cardiff City (15th) 0-1 Bristol City (5th)
SATURDAY 7TH NOVEMBER 2020
Reading (1st) 0-3 Stoke City (8th)
Birmingham City (17th) 1-3 AFC Bournemouth (4th)
Blackburn Rovers (12th) 3-1 Queens Park Rangers (18th)
Dykes pen 61
Brentford (11th) 0-0 Middlesbrough (7th)
Derby County (24th) 0-2 BARNSLEY (16th)
Huddersfield Town (13th) 1-1 Luton Town (10th)
Norwich City (3rd) 1-0 Swansea City (6th)
Nottingham Forest (20th) 2-0 Wycombe Wanderers (22nd)
Rotherham United (19th) 2-1 Preston (14th)
Sheffield Wednesday (23rd) 0-0 Millwall (9th)
Watford (2nd) 3-2 Coventry City (21st)
Sarr pen 83
Barnsley lie in 16th place in the Sky Bet Championship with 13 points from 11 games. We are 6 points off the Play-Offs, 8 points off the Automatic Promotion Places, 9 points off First Place and 6 points above the Relegation Zone.
Up to 8/11/20
Sky Bet Championship Matchday Twelve: Barnsley v Nottingham Forest, Saturday 21st November 2020. Kick-Off: 3pm
On The Road:
Sky Bet Championship Matchday Fourteen: Blackburn Rovers v Barnsley, Saturday 28th November 2020. Kick-Off: 3pm.