Nathan Sheron dented Woking’s promotion hopes after earning Oldham a late 1-0 Vanarama National League win at Boundary Park.
The defender scored in the second minute of second-half stoppage time to secure the hosts a dramatic victory.
It left Woking third, four points above fourth placed Chesterfield having played a game more.
Alex Reid had earlier hit a post for Oldham before Sheron nodded in the crucial goal at the death.
