When two creatures directly oppose one another and no rule provides a DC, each makes an appropriate Ability Check. The creatures may use different Abilities depending on their approaches.
The higher total succeeds. On a tie, the situation remains unchanged, and the creature resisting the action or maintaining the current position prevails.
Boons, Banes, Backgrounds, and Assistance apply when appropriate.
Do not use a Contested Action when a rule provides a static DC, such as Awareness DC or Grapple DC.