If it is unclear whether a catch was made before the disc contacted the ground (grass is considered part of the ground), or whether a player's first point of ground contact after catching the disc was in- or out-of-bounds or in or out of the end zone, the player with the best perspective makes the call.

If it is unclear whether a catch was made before the disc contacted the ground (grass is considered part of the ground), or whether a player's first point of ground contact after catching the disc was in- or out-of-bounds or in or out of the end zone, the player with the best perspective makes the call.