Mechanics
What Marathon Runner does
Marathon Runner improves the efficiency of sustained running within the Mobility tree. It supports longer rotations but does not replace stamina recovery decisions or remove the need to manage exposed sprints.
Build fit
Who should take it
Prioritize it for wide-map routes, repeated repositioning and builds that aim to reach an extraction without pausing in predictable open areas.
Tradeoff
What the points do not solve
Compact interior fights can provide fewer opportunities to realize the benefit. It also competes with the opposite Mobility path and later roll or vault upgrades.
Picking order
When to allocate it
Complete the required Nimble Climber investment first. Add ranks as the route length demands, then continue only if the upper Mobility branch matches the rest of the build.
Test the rank in the planner →