CHRIS Martin struck a hat-trick as Derby County came from behind to beat Blackpool 5-1 at the newly-named iPro Stadium - and record a fifth successive win.
The depleted Seasiders took a third-minute lead through Isaiah Osbourne and held their advantage until half-time.
But the Rams hit back after the break through Martin, who converted two penalties to take his season's tally to 13, midfielder Craig Bryson and skipper Richard Keogh.
Blackpool ended the game with nine men after having Neal Bishop and substitute Angel Martinez sent off.
The result, in Saturday's early kick-off, kept Steve McClaren's men fourth in the Championship table.
It started badly for the home side, though, as Osbourne directed a glancing header from a Tom Ince free kick on the right past Lee Grant.
Derby largely dominated the rest of the opening period but could not find an equaliser before the break.
Bishop came to Blackpool's rescue on more than one occasion, blocking Simon Dawkins' shot after the Rams man had been released by Chris Martin.
Bishop then got in the way of Martin's goalbound effort after 33 minutes, from Dawkins' low centre.
Another Dawkins cross found Bryson in front of goal moments later but the midfielder scooped the ball over the bar from close range.
Derby had a penalty appeal turned down in the 43rd minute when they thought Jamie Ward's corner had struck the arm of Bishop in the area but referee Andy Haines was unmoved.
An out-of-sorts Ward was replaced by Johnny Russell at the interval and the Rams won a penalty within 40 seconds of the restart.
Makeshift centre-back Jack Robinson was adjudged to have brought down Martin in the area.
Martin picked himself up and sent Matt Gilks the wrong way from the spot, in the 47th minute.
After 53 minutes, Derby took the lead, following a defensive mix-up.
Chris Basham's headed backpass was pounced on by Dawkins and though Gilks saved well at his feet, Martin converted the loose ball from 12 yards.
Dawkins shot just wide after a swift break involving Russell but Derby scored again in the 57th minute.
Dawkins found Wisdom on the overlap and his low cross from the right was neatly turned in at the near post by Bryson.
Grant did well to beat out a free kick from former Rams striker Steve Davies, before the hosts went further ahead.
Dawkins went down in the box under the challenge of Bishop, who was deemed to be the last man and was therefore sent off.
Martin picked the same spot with his second penalty and, again, sent Gilks the wrong way, to complete his hat-trick.
With the game won, Derby took the chance to hand on-loan defender Michael Keane his debut, replacing Jake Buxton.
Martinez was dismissed in the 87th minute, his second booking for a foul on Keogh coming soon after his first, having felled Dawkins.
Derby rounded off the scoring in the second minute of added time.
Keane's header from a left-wing corner came back off the legs of Gilks but Keogh was on hand to force the ball home.
DERBY COUNTY: Grant, Wisdom, Keogh, Buxton (Keane, 73), Forsyth, Eustace (Hendrick, 81), Hughes, Bryson, Dawkins, Ward (Russell, 46), Martin. Other subs: Legzdins (gk), Cisse, Sammon, Bennett.
BLACKPOOL: Gilks, Bishop, Basham, Robinson, Blackett, Ferguson (Angel Martinez, 67), Gosling, Osbourne, Dobbie (Delfouneso, 59), Ince, Davies. Other subs: Warner (gk), Grant, Chopra, Eccleston, Barkhuizen.
REFEREE: A Haines (Tyne & Wear).
ATTENDANCE: 24,063 (348 away fans).
