Rules Analysis
World Flying Disc Federation 2017 Rules of Ultimate
8. Status of the Disc

Any player may attempt to stop a disc from rolling or sliding after it has hit the ground.

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If, in attempting to stop such a disc, a player significantly alters the disc’s position, the opposition may request that the pivot be established at the location where the disc was contacted.

The opposition request may be made by verbal request or by pointing to the correct location.

- Play does not stop and a check is not required to restart play (similar to an uncontested travel infraction (Rule 18.2.6)).

- If the offensive team is the team that significantly altered the discs position they should not move to establish the pivot at the location where the disc was contacted unless requested to by the opposition.