Magic Game Day is a seasonal Magic: The Gathering tournament organized by the DCI. The tournament is played in local game and hobby stores around the world, a month after each a new card set is released. Game Day events are Standard format tournaments, using only the newest cards the game has to offer. The events present one the first opportunities to discover how the new cards shape the Constructed metagame. All participants receive a promo card (while supplies last). From 2009 on, Top 8 finishers receive an additional card.
The first Game Day was on July 14th 2007, in commemoration of the release of 10th Edition.