Devarn Green’s early strike was enough for Oldham to return to winning ways with a 1-0 victory against promotion-hopefuls Chesterfield.
Oldham took the lead six minutes in when Ellis Chapman crossed into the box and Green fired the ball home.
Ryan Colclough had a good chance for Chesterfield when his close-range effort went over the bar and the midfielder then set up Bailey Clements, but his header went just wide.
Ollie Banks had a good chance for the Spireites five minutes after the break but his curling effort went just over the bar and Paul McCallum forced Latics goalkeeper Magnus Norman to make two good saves.
Norman then made another great save to deny Liam Mandeville in the final 10 minutes for Oldham to claim the three points.