5,755 watched the action at Sixfields and the vast majority will have gone home happy after Danny Rose broke the deadlock just after the hour mark.
With 15 games remaining of the League Two season, Northampton’s club record victory moves them on to an impressive 70 points for the campaign already, 10 clear of nearest challengers Plymouth Argyle after they were held to a draw at Crawley.
Speaking to the official club website after the match, Town boss Chris Wilder said: "We had to dig in a little bit at times and it wasn’t a vintage free flowing performance but it’s a fantastic result.
"Wycombe pushed us all the way and we had to work exceptionally hard to get the win but it’s a massive, massive three points."