Mitch Pinnock's goal seven minutes from time earned Dover all three points as they beat Leyton Orient 1-0 in the only Vanarama National League game to survive the bad weather.Pinnock's quality strike from the edge of the box at the Crabble denied the visitors a point after Orient hit posts twice in the second half.Nortei Nortey's shot hit a post in the 63rd minute and rebounded to safety and nine minutes later Dan Holman's shot was saved as Reynolds hit a post with the rebound before Adams had two shots blocked. In the 83rd minute, Ade Azeez found Pinnock, who controlled the ball and picked his spot to beat Mitch Walker from just inside the penalty box. The win lifts Dover to seventh while Orient's six-game unbeaten run came to an end.