Paul Cook hailed Chesterfield as they capitalised on Scunthorpe's draw on Monday to move top of League Two with a 2-0 win at York.
The Spireites made a fine start and took the lead after two minutes through Eoin Doyle before Gary Roberts doubled the lead six minutes before the interval.
Cook is refusing to get carried away with his side's position and insists his team are focusing on one game at a time.
"We started well like we did at Northampton and Eoin Doyle's goal was top draw," he said. "We looked bright and the game got a bit easy for us to be honest as we did get a bit sloppy and make a few mistakes.
"You've got to give the lads credit for two tough fixtures and to get two wins because we're playing on heavy pitches at the moment. To come away from the disappointment of Southend and Rochdale, I think the lads have responded magnificently.
"We're down to 18 games now and all we want to do is gain promotion if it's possible.
"We've a good group of lads here who work very hard and tonight they deserve a lot of plaudits. It's another game gone and three more points to where we want to be. There's nothing won or nothing lost, there's a long way to go."