Tranmere maintained their four-point lead at the top of League One with victory over Notts County who suffered a second home defeat in a week.
First-half substitute Joe Thompson grabbed the only goal, heading in at the far post after great work by Abdulai Bell-Baggie.
Notts had plenty of possession but the visitors created the better chances.
Jake Cassidy spurned a great opening before the interval and Bell-Baggie could have had a second-half hat-trick.
But Rovers, who are now nine points clear of Notts and still four ahead of Stevenage in second place, did not need the security of a second goal.
Notts, who slip to seventh place, started encouragingly and enjoyed plenty of the ball on a glorious sunny day at Meadow Lane.
But for all their neat touches and nimble footwork in the middle of the park, they rarely threatened the visitors' goal.
A against fellow promotion rivals in six days illustrates why Notts manager Keith Curle is eager to bring in a new striker.
The Magpies' only noteworthy first-half efforts came when the ever-industrious Neal Bishop hopelessly miskicked from 12 yards after a fine run by new signing Jordan Stewart, and Jamal Campbell-Ryce fired a shot wide after cutting in from the right flank.
But by that time, the hosts were already trailing to a highly-disciplined Rovers, who played with all the confidence of a side who were four points clear at the top of the table heading into this fixture.
Thompson, an 18th-minute replacement for the injured Jean-Louis Akpa Akpro, was the scorer, rising at the far post to head in Bell-Baggie's deep right-wing cross.
Cassidy wasted a great one-on-one opportunity to double the lead, but could only shoot straight at the on-rushing Notts keeper Bartosz Bialkowski.
Notts introduced Lee Hughes in the second period but, despite adopting a more direct approach, still struggled to create chances.
Yoann Arquin failed to get a decent connection with a glancing header and Gary Liddle headed over from a corner.
But Tranmere should have been out of sight by the time they safely negotiated a nervy last five minutes.
The excellent Bell-Baggie hit the post and also sent two rasping low efforts narrowly wide.
And he teed up Cassidy who also drilled a low effort just wide of the right-hand post after a swift counter-attack.
Bialkowski also pulled off a fantastic stop from James Wallace.
Rovers, who could easily have had Ash Taylor sent off for a late lunge on the home keeper, held on and were able to celebrate in front of a noisy and delighted travelling away support of nearly 1,000.