Notts County beat Rochdale 1-0 to move four points clear at the top of League Two in front of over 10,000 at Meadow Lane.
In the other League Two game, Cheltenham drew 3-3 with Darlington after being 3-0 down. The result means that Cheltenham are nine points clear of Grimsby with three games left.
In League One Tranmere, with Peter Gulacsi in goal, lost their game in hand 2-1 at Brentford to stay two points inside the drop zone.
In the Conference champions Stevenage beat Gateshead 1-0 to leave Andy Ferrell's side needing at least a draw, and probably more, in their final match to avoid the drop. That result means Forest Green need only a point against Grays on Saturday to stay up. Kidderminster lost 2-1 at home to Barrow in front of little more than 1,000 fans.