Leyton Orient held off a second-half fightback from Tranmere to secure a 2-1 win at Prenton Park.
The visitors went ahead in the 10th minute when skipper Stephen Dawson fired into the top-right corner after Rovers failed to clear the ball properly.
Then in first-half stoppage time Orient doubled their lead when Scott McGleish found the back of the net.
Scott Wootton pulled a goal back for Les Parry's side but Orient held on for three precious points.
After Dawson opened the scoring Tranmere should have been level five minutes later when Ian Thomas-Moore set Enoch Showunmi clear but keeper Jason Brown made a fine blocking save.
Orient looked dangerous on the break and it needed a sharp save by Gunnar Nielson to deny Paul M'Poku in the 32nd minute.
Then Disaster struck in first-half added time for Rovers when Nielsen spilled a shot by M'Poku presenting McGleish with an easy finish.
A fingertip save by Nielsen denied Matt Spring a third for Orient six minutes into the second half.
Tranmere were back in contention in the 61st minute as Wootton turned an Aaron Cresswell free-kick past an unsighted Brown. Then Brown produced a tremendous reaction save to deny Dale Jennings an equaliser.
Showunmi was next to be thwarted by the alert keeper, who then saved brilliantly from a misplaced header by his own man Aaron Brown.
Tranmere were again out of luck after 84 minutes when an Ian Goodison shot hit the bar.
Copyright (c) PA Sport 2009, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms