High fives for magnificent Millers ... on-the-whistle derby report: Doncaster Rovers 0 Rotherham United 5
At the newly-named Eco-Power Stadium, the Millers turned on the power themselves and killed off the contest within the opening 16 minutes before adding three more goals in the seccond half.
Paul Warne's men were already at the summit of the table but are now three points clear of second-placed Wigan Athletic who could only draw this evening.
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Hide AdBottom club Rovers simpy had no answer to Rotherham's strength, speed and energy and the margin of victory could have been even greater.
Goals from Mickel Miller, Ben Wiles, Chiedozie Ogbene and Dan Barlaser, from the spot, and Jamie Lindsay made it an occasion to savour.
Only three minutes had gone when good work by Wiles gave Ollie Rathbone a sight of goal and it needed a flying save from Jonathan Mitchell to foil the Rotherham midfielder.
The lead was only a five more minutes in the coming as Miller floated in a corner from the right that evaded everyone and ended up in the back of the net.
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Hide AdThere were shades of the wing-back's last appearance here, in the visitors' 6-0 EFL Trophy win in September, when he scored with a cross.
The Millers, looking sharp in every area of the pitch, were just too good for Rovers and they doubled their advantage on 16 minutes.
Barlaser's sublime feed released Ogbene and Wiles duly steered in his seventh goal of the season when his teammate delivered a pinpoint low cross.
The derby atmosphere had been frenzied from the and the noise in the sold-out away end reached new levels as Wiles wheeled away in celebration.
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Hide AdAfter quiet spell, the Millers turned on the pressure again and the home goal was under seige for a frantic few minutes, Joe Mattock coming closest to adding to the scoreline with a shot that was turned away by Mitchell.
Doncaster had no answer to the craft and graft of Rotherham's midfield three while Ogbene was wreaking havoc down the right flank.
Such had been the Miller's first-half domination that Rovers, lucky to be only two goals behind, were booed off at the interval.
Mattock had come in at the back in the injury absence of Rarmani Edmonds-Green and Wes Harding was also in a three-man rearguard as skipper Richard Wood was rested.
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Hide AdWill Grigg won the vote to partner Michael Smith up front, with Freddie Ladapo, who never got the January move he was seeking, named among the substitutes again.
Doncaster had to wait until the 53rd minute to muster any attempt on goal, subs Ben Jackson dragging his effort off target after Mipo Odubeko's shot had been blocked.
Rathbone shot just wide before Ogbene cut in to score a 72nd-minute stunner right in front of the Millers' following.
Within four minutes, sub Josh Kayode was chopped down Joseph Olowu and Barlaser's penalty flew past Mitchell.
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Hide AdWith ten minutes to go, Rotherham goalkeeper Josh Vickers had his first save to make, from Tommy Rowe's header,
But the Millers were unrelenting and added a fifth goal as sub Lindsay bagged his first of the campaign.
Thirty-seven points had separated the two teams before kick-off. It was 40 long before the end.
Doncaster (3-4-1-2): Jonathan Mitchell; Kyle Noyle, Ollie Younger, Joseph Olowu; Charlie Seaman, Matt Smith, Adam Clayton (Ethan Galraith H-T), Branden Horton (Ben Jackson H-T); Tommy Roe; Mipu Odebeko, Joe Dodoo (Reo Griffiths 64). Subs not used: Louis Jones, Ro-Shaun Williams, Josh Martin, Kieran Agard.
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Hide AdRotherham (3-5-2): Josh Vickers; Wes Harding, Michael Ihiekwe, Joe Mattock; Chiedozie Ogbene Richard Wood 73), Ben Wiles (Jamie Lindsay 77), Dan Barlaser, Ollie Rathbone, Mickel Miller; Will Grigg (Josh Kayode 70), Michael Smith. Subs not used: Viktor Johansson, Hakeem Odoffin, Shane Ferguson, Freddie Ladapo.
Goals: Miller 8, Wiles 16. Ogbene 72, Barlaser pen 76, Lindsay 88 (Rotherham).
Referee: Scott Oldham (Lancashire):
Attendance: 9,255 (3,255)