Glen Taylor’s second half goal was enough to edge the Moors past Boston United and into third place in the National League North on a disruptive and, at times, bizarre midweek evening at The Brewery Field.
The Moors striker slid a cool shot below the body of the outrushing George Willis after Lewis Gibbens had slipped in the build-up.
The Boston defender was forced off with a suspected dislocated shoulder in a game which saw combined delays of around 20 minutes.
When match referee, Mr J. Matthews, was unable to continue due to a back injury, a replacement linesman was drafted in, causing a 15-minute stoppage in an already scrappy contest.
Jason Ainsley made two changes to the side who beat Chester 2-0 on Saturday, opting to hand Liam Agnew a first start for the club in midfield, while Shaun Tuton came in on the right wing with Ryan Hall and Andrew Johnson dropping to the bench.
The away side created a cluster of half chances, going closest when a long punt upfield from Willis was headed on by Brad Abbott, but Matt Gould held on comfortably.
The main talking point of the first half arrived shortly after the hour when the referee approached the dugout to explain he was unable to continue due to injury.
Max Wright tested Gould late in the half with a low drive from range, but the Moors keeper got a strong hand to the ball.
It was Spennymoor who looked the more refreshed and positive side after the break, and only a good stop from Willis denied Tuton with a header at the back post.
The defining moment arrived with nine minutes of the second half gone, and it was predictable that a mistake would provide the golden chance, which the red-hot Taylor took with ease.
Moors are now third in the National League North, three points behind Stockport County with a game in hand. AFC Telford travel to The Brewery Field on Saturday in the Third Round of the FA Trophy.