Debutant Tom Nichols scored the only goal as nine-man Peterborough United held on for a dramatic 1-0 win at Chesterfield in League One yesterday.
Michael Smith and Ricardo Santos were both sent off for Posh.
Meanwhile Northampton Town have extended their lead at the top of League Two to five points.
The Cobblers beat bottom side York 2-0 at Sixfields yesterday.
The Yorkshire team were reduced to ten men after Luke Hendrie was sent off for a challenge on Ricky Holmes.
Elsewhere in the National League North Corby`s game at Bradford Park Avenue was popstponed but Brackley won 2-1 at Tamworth.
In the Southern Premier Kettering`s game with Paulton was postponed and in the Southern Division One Central AFC Rushden and Diamonds thrashed Ware 3-0.