What action can result in a player being marked as a no-show?

A player may be marked as a no-show when they do not appear for the first round without giving notice. This is because tournament organization relies on players being present at designated times to start rounds promptly. When a player is scheduled to participate in a round and does not show up, it not only affects their standing in the event but also can disrupt the pairing process for other participants.

In contrast, missing the registration deadline typically means a player cannot enter the tournament at all, rather than being marked as a no-show for a round. Arriving late for a round might lead to penalties or being unable to fully participate in the match, but it doesn’t automatically result in a no-show designation unless the player fails to arrive within the late grace period. Using an unregistered deck may lead to other issues, such as a deck check or potential disqualification, but it does not pertain directly to the concept of not showing up for a scheduled round. Thus, the unique condition of not providing notice and failing to appear for the first round is what classifies a player as a no-show.