It couldn't have been a worse start for United as Phil Hawkins was shown a straight red card after he was dispossessed inside the area and subsequently fouled the Lancing attacker who was clean through on goal.
With no substitute goalkeeper named on the bench, midfielder Ashley Jarvis (pictured) donned the gloves and his first action between the sticks would be to face a penalty.
Jarvis chose the right way and saved the penalty, pushing the ball away to safety.
As you would expect following Hawkins' dismissal, Lancing looked to push foward and attack the goal of Jarvis, but he was rarely tested in the opening twenty minutes.
The opening goal of the game would come in the 23rd minute though as a cross from the left was met by the head of Dean Stevens, who attempted to clear the ball, but the ball skimmed off the top of his head and looped over Jarvis and into the goal.
Fifteen minutes later, the lead was doubled as Lucas Tredrea found a way past the outstretched foot of Jarvis.
It was always going to be a tough ask for ten-minute United, with set pieces looking their best way of finding a passage back into the game but the home defence stood firm to repel their advances.
Half time saw the introduction of Joel Mbiya Kalambayi in an effort to add extra pace to the frontline, but their was still no way through the stubborn defence.
A third goal followed on the hour mark as United failed to clear their lines inside the penalty box, with the ball falling to Lewis Finney who slotted home.
Finney turned provider fifteen minutes later for goal number four as his drilled cross was turned in by Alex Fair to cap an afternoon to forget at Culver Road