In order to participate in Magic: The Gathering tournaments, players must be able to provide the necessary and appropriate identifying information to participate in the tournament.
Depending on the tournament, this may be either your DCI number or your Wizards account ID. Because…this can’t be complicated enough.
For tournaments run using the Eventlink tournament management software, players must provide a Wizards Account and/or a first and last name.
Eventlink is the current software for store level events. It prefers Wizards Account information. First/Last name can cause problems.
For tournaments run using the Wizards Large Tournament Reporter (WLTR), players must provide a DCI number and first/last name. Players without a DCI number should obtain one from https://accounts.wizards.com/ before attending an event.
WLTR is used for large events like Magic Fests. Players can get their own DCI numbers online without help. Stores can no longer help players obtain a number, nor do they need to as they use Eventlink. However, many wont realize this until its time to get registered.