Barnsley's unbeaten start is now over, they had started a season with seven undefeated games for the first time since 1946-1947 however they couldn't make it eight at bogey club Coventry.
This defeat extended their wretched run at the Sky Blues, they have only ever won twice at Coventry, both at Highfield Road in 1921 and 1923 - this was their 18th defeat in 25 visits since that last victory and they have lost five of the last six.
It is the third time this century that Coventry have inflicted Barnsley's first league defeat of a season - also in 2009-2010 and 2007-2008.
It is the fourth season in a row Barnsley's first league defeat has come away from home.
Whilst ending a 16 match unbeaten run in League One, it was also their first away defeat at this level for 12 matches.
This was also the first time in six League One away games that they have failed to score. It is the second time overall this season after the goal-less home draw with AFC Wimbledon.
It was a bad day all around for most of the division's top six. Prior to Saturday, Peterborough, Portsmouth, Barnsley, Sunderland, Walsall and Fleetwood occupied the top six places, and only Portsmouth won (at Peterborough) and Fleetwood were the only other side to avoid defeat. Incidentally prior to this weekend Peterborough, Portsmouth, Barnsley, Sunderland and Walsall were also all undefeated, meaning Portsmouth are now the only side in League One yet to lose a game.
Barnsley started the season winning three of their first four league games (D1), they have won only one of the subsequent four (D2 L1)
Jacob Brown made his fifth Barnsley league appearance but this was his first ever league start for the club.
Barnsley enjoyed 55% ball possession, only at Bradford (49%) have they failed to have more ball possession than their opponents this season.
Coventry only managed two shots on target (compared with Barnsley's five) that is still the joint most by an opponent on their own ground against Barnsley this season.
Trevor Kettle was the referee for the match, a much maligned figure amongst Reds supporters and he gave 15 fouls against Barnsley - the most this season, whilst only giving four against Coventry, the lowest by a Barnsley opponent this season.
Indeed four fouls is the lowest given against a Barnsley opponent since the 14th January 2017 (Fulham also 4)
1. Adam Davies
12. Dimitri Cavare
5. Ethan Pinnock
6. Liam Lindsay
23. Dani Pinillos
21. Mike Bahre
4. Kenny Dougall
27. Alex Mowatt
26. Mamadou Thiam
33. Jacob Brown
19. Kieffer Moore
10. George Moncur (for Bähre 65)
29. Victor Adeboyejo (for Brown 72)
8. Cameron McGeehan (for Lindsay 83)
13. Jack Walton
14. Jared Bird
18. Adam Jackson
28. Ben Williams
1. Lee Burge, 17 Dujon Sterling, 4. Jordan Willis, 15, Dominic Hyam, 12. Junior Brown, 23. Luke Thomas, 20. Tom Bayliss, 8. Michael Doyle, 26. Jordan Shipley, 10. Conor Chaplin, 18. Jonson Clarke-Harris.
6. Liam Kelly (for Shipley 68)
21. Amadou Bakayoko (for Thomas 89)
5. Tom Davies, 11. Jordy Hiwula, 13. Liam O'Brien, 22. Anthony Andreu, 27. Jordan Thompson.
Coventry Mark Robins said:
“It wasn’t a perfect performance but a 1-0 win against a side who had gone so far unbeaten is a great afternoon’s work.
“I thought we were the better team even though they gave us a really tough afternoon.
“We gave them a tough afternoon as well.
“We had four or five chances that you’d expect the players who had the chances to score and if it weren’t for a mixture of rushing things, their blocks and goalkeeper saves we would’ve been out of sight.”
“They’re decent and will shift you around.
“They’ll try and make things narrow so that they can utilise the width.
“They have good players that can move the ball and deliver balls well out wide to try and shift the balance.
"But we defended really well, we had to be solid and strong.”
SkyBet League One results:
Saturday 15th September 2018:
(16th) AFC Wimbledon 2-3 Scunthorpe United (15th)
(21st) Bradford City 0-2 Charlton Athletic (7th)
(14th) Burton Albion 2-1 Sunderland (4th)
(12th) Coventry City 1-0 BARNSLEY (3rd)
(8th) Fleetwood Town 1-1 Accrington Stanley (10th)
(11th) Luton Town 1-0 Bristol Rovers (22nd)
(2nd) Peterborough United 1-2 Portsmouth (1st)
(24th) Plymouth Argyle 0-1 Blackpool (9th)
(13th) Rochdale 3-0 Gillingham (20th)
(17th) Shrewsbury Town 2-0 Southend United (18th)
(6th) Walsall 1-4 Doncaster Rovers (5th)
Marquis pen 33
(19th) Wycombe Wanderers 0-0 Oxford United (23rd)
Barnsley lie in 3rd place in Sky Bet League One with 15 points from 8 games.
We are 1 point inside the Play-Offs, 4 points off the Automatic Promotion Places, 5 points off First place and 9 points above the Relegation Zone.
Up to 16/09/18
Sky Bet League One Matchday Nine: Barnsley v Burton Albion, Saturday 22nd September 2018. Kick-Off: 3pm
On The Road:
Sky Bet League One Matchday Ten: Fleetwood Town v Barnsley, Saturday 29th September 2018. Kick-Off: 3pm