Match ends, Huddersfield Town 4, Derby County 4.
Derby County missed out on a chance to improve their play-off chances after a thrilling draw at Huddersfield.
Tom Ince scored early for the Rams, but his side were 3-1 down at the break as Oscar Gobern, Mark Hudson and Reece James took advantage of poor defending.
But Derby started the fightback early in the second half as Simon Dawkins converted a Stephen Warnock cross.
Jesse Lingard equalised for the Rams, Nahki Wells put Town back ahead before Ince got his second to salvage a point.
It means that Derby, who had led the Championship for much of the season, stay fifth in the division and need one more win to guarantee themselves a play-off place.
Had they won, though, they would have all but secured their position in the top six as Brentford and Wolves would have been six points behind with two games left and a huge goal difference to recover.
|Derby rollercoaster six weeks|
|The Rams were two points clear at the top of the Championship at the start of March|
|Steve McClaren's team failed to win any of their matches in March, losing three and drawing two, as they dropped to fifth place by the end of the month as Bournemouth, Middlesbrough, Norwich and Watford all took advantage|
|Since the start of April, Derby are unbeaten, winning two and drawing three of their four matches|
Huddersfield have lost just one of their last eight games and move above Leeds to 15th place.
Steve McClaren's pre-game plans for Derby were hit after just three minutes when Craig Bryson was hurt and replaced by Dawkins.
But it did not seem to hurt the early Rams rhythm as they opened the scoring a few minutes later when the Ince unleashed a rasping drive from 25 yards into the top corner.
Ince came close a few minutes later from distance before Derby were forced into a second early change as Zak Whitbread was forced off and replaced by Cyrus Christie.
The Terriers equalised as Christie was caught in possession and Conor Coady was able to float a long ball forward which found Gobern unmarked in the box, and the former Southampton player chested the ball down and shot past Lee Grant - despite protests from the Derby defence that Gobern had handled the ball.
Four minutes later Huddersfield took the lead as the unmarked Hudson headed in James' corner at the far post before Derby's first-half defensive woes were compounded as James scored direct from a corner in stoppage time.
Whatever former England boss McClaren said at half time appeared to have the desired effect as Dawkins got his fifth goal of the season as he slotted in Stephen Warnock's cross.
The Rams drew level after an hour as Lingard's controlled low shot from the edge of the box beat Alex Smithies.
But when Ryan Shotton gave the ball away to Wells, he played in Sean Scannell, whose shot was saved by Grant but Wells was there to capitalise.
However Ince got his 10th goal since joining Derby in February as he shot into the bottom corner after cutting his way through the Huddersfield defence.
Town thought they had won it in stoppage time, but Ishmael Miller's goal was chalked off for offside.
Derby boss Steve McClaren: "We are crawling over the line and we don't make it easy for ourselves. For the neutrals it was great, for the managers it was a nightmare and for the fans it had ups and downs.
"We need one more win and that's our only focus - but the way we are defending at the moment, anyone could beat us. We are not in a good condition but we are scrapping."
Huddersfield boss Chris Powell: "People say we have nothing to play for but the players showed they care about this club and their own performances.
"It's a shame we didn't get the three points our first-half performance warranted but we are building for the future. We can do better and that's the message I will be getting through to the players."
- 10CoadySubstituted forHoggat 81'minutes
- 8ButterfieldBooked at 78mins
- 3JamesBooked at 90mins
- 21WellsSubstituted forBunnat 88'minutes
- 17WhitbreadSubstituted forChristieat 27'minutes
- 19HughesSubstituted forRussellat 79'minutes
- 4BrysonSubstituted forDawkinsat 9'minutesBooked at 66mins
- Dean Whitestone
- Shots on Target
Second Half ends, Huddersfield Town 4, Derby County 4.
Attempt missed. Mark Hudson (Huddersfield Town) header from the right side of the six yard box misses to the right. Assisted by Jacob Butterfield with a cross following a corner.
Corner, Huddersfield Town. Conceded by Johnny Russell.
Reece James (Huddersfield Town) is shown the yellow card for a bad foul.
Johnny Russell (Derby County) wins a free kick on the right wing.
Foul by Reece James (Huddersfield Town).
Offside, Huddersfield Town. Jacob Butterfield tries a through ball, but Ishmael Miller is caught offside.
Attempt saved. Jacob Butterfield (Huddersfield Town) left footed shot from outside the box is saved in the centre of the goal. Assisted by Sean Scannell.
Substitution, Huddersfield Town. Harry Bunn replaces Nahki Wells.
Attempt missed. Joel Lynch (Huddersfield Town) left footed shot from more than 35 yards is high and wide to the left. Assisted by Jonathan Hogg.
Substitution, Huddersfield Town. Jonathan Hogg replaces Conor Coady.
Goal! Huddersfield Town 4, Derby County 4. Tom Ince (Derby County) left footed shot from the centre of the box to the bottom right corner. Assisted by Darren Bent.
Substitution, Derby County. Johnny Russell replaces Will Hughes because of an injury.
Jacob Butterfield (Huddersfield Town) is shown the yellow card for a bad foul.
Will Hughes (Derby County) wins a free kick in the defensive half.
Foul by Jacob Butterfield (Huddersfield Town).
Foul by Simon Dawkins (Derby County).
Joel Lynch (Huddersfield Town) wins a free kick in the defensive half.
Attempt missed. Mark Hudson (Huddersfield Town) header from the centre of the box misses to the right. Assisted by Reece James with a cross following a corner.