Online preregistration was available through the Cascade Games website. Players were highly encouraged to take advantage of online preregistration. Online preregistration remained open until 9 p.m. PT June 20, 2013, or until 4,400 players are preregistered, whichever came first.
It will allow Cascade Games to secure a minimum of 100 seats for players who have opted for on–site registration on Friday. On-site registration will start at 9 a.m. PT as announced previously and will be handled on a first-come, first-serve basis.
In the event some players may not be able to secure their seat in the Grand Prix, side event Modern Masters drafts will also be organized on-site.
If you are not going to be playing in Grand Prix Las Vegas, be sure to tune into the live web coverage at twitch.tv/magic.