Oxford Utd 1-1 Rochdale
Oxford United remained unbeaten after a draw against Rochdale but lost top spot in League Two to Chesterfield.
Having fired into the side netting earlier, James Constable gave the U's the lead after Danny Rose's initial effort was saved by keeper Josh Lillis.
Rochdale equalised through Matthew Lung who rose at the far post to send a header from Rhys Bennett's cross past Ryan Clarke from close range.
Tyrone Marsh and Constable both went close late on but the game ended level.