Rotherham manager Steve Evans said his team were "a credit from start to finish" after seeing off npower League Two promotion rivals Northampton 3-1.
Daniel Nardiello sparked the Millers' recovery after their recent disappointing home form with a goal from the penalty spot five minutes before the break. But two goals in three minutes set the seal on Rotherham's performance.
Ben Pringle doubled Rotherham's advantage after 75 minutes and David Noble made sure the points were secured minutes later. Clarke Carlisle's injury time header for Northampton was no more than a consolation.
Evans said: "It was an important win for us. We said it was it was important we matched the physicality of the most direct team in English football, and they have some quality when they do it.
"They are very good, but we stood up to their missile approach and we managed their hustle and bustle and managed to get the ball down and play. I think we were unfortunate it was 3-1 today because it could have been much more, but we would have taken 1-0 or 29-28.
"It was important we had the physicality because that is not one of our strong points. Northampton are the form team of the division and that's no surprise because they have some good players, but we proved when we can get the players out we want to get out we can win football matches."
Town boss Aidy Boothroyd said: "We didn't deserve anything out of the game. I think for the first time this season we got out-worked, and I very rarely say that about our players. Rotherham worked harder than we did, and if you don't work hard then you get turned over and that's what happened.
"When a team is under a bit of pressure they send us along because we seem to get them up again, and I don't know why that is because we are better than that, far better than that, but we can't be good every weekend.
"We knew what Rotherham do, we knew how they play and we didn't get our normal game going. We didn't get hold of the ball, we didn't make good decisions they hurried and harried and you have to give credit to them and we didn't deal with it very well."
"You have to give credit to the opposition, they were their points today and they deserved them," Boothroyd added.