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This event fires when the speed at which a Humanoid is running changes.

While running Humanoid|Humanoids cover, on average, their Humanoid/WalkSpeed in studs per second.

When the Humanoid stops running this event will fire with a speed of 0.

See also

  • For swimming and climbing see the Humanoid/Swimming and Humanoid/Climbing events
  • You can also detect when a Humanoid is running using the Humanoid/StateChanged event


Name Type Default Description

The speed at which the Humanoid is running

Code Samples

Humanoid action events

This code, when run from a LocalScript parented to a Player/Character will listen to the Humanoid|Humanoid’s action events and print when they are fired.

This code sample is intended to demonstrate when each event does, and does not, fire.


The below assumes that there’s a player in Workspace named “Player” who has a Humanoid. It will print whether or not their character is running.