REGISTRATION
The Grand Slam of Ultrarunning registration form is available on Ultra Signup 12/1/23 through 6/28/24. There will be no additions after that date. As of December 1st you can use the link below, or you can go directly to UltraSignup and search for Grand Slam Of Ultrarunning to register if you prefer. The entry fee is $90.
Grand Slam of Ultrarunning Registration