Reach at least five connected roads
A route must have a length of at least five to qualify. The game searches for the longest continuous route without counting the same road edge twice. Disconnected road groups are not added together.
Imagine a five-edge line and a separate two-edge line. Their owner has seven road pieces, but the longer route is five. A fork can create the same distinction: counting every branch on the board is not the award calculation.
The holder keeps a tie
If the current holder is still tied for the longest qualifying route, they keep the award. Matching their six-road route with your own six is therefore not enough to take it. You need a strictly longer qualifying route.
If an interrupted route removes the holder from the leaders and two other players tie for the maximum, neither immediately receives the award. A sole qualifying leader can claim it when the tie is broken.
A settlement can interrupt the route
An opponent’s settlement or city blocks continuity through its corner. That can shorten the route used for the award even though none of your road pieces is removed. The result depends on the remaining connected paths.
Defending an exposed junction can matter more than adding a decorative branch. Check which empty corners opponents could legally settle on, especially if your score relies on keeping the award.
Price the road race in points and resources
Taking the award from another player adds two points to you and removes two from them. But the lead is fragile if they can cheaply extend again. A race can consume wood and brick that would otherwise fund permanent settlements.
Prefer extensions that also reach useful land or a port. Near the finish, count how many extra roads are really required, how many pieces remain, and whether the award gives you the winning total on your own turn.