Introducing the San Diego Ultra Slam.
Since the creation of the Cuyamaca 100k last year, the RD's of San Diego's mountain ultra races have put together a special award for those runners who complete four races of each iconic ultra distance; 50k, 50 miles, 100k, and 100 miles. For more information please visit San Diego Ultra Slam.
Sales for a 2018 free entry to SD 100 and numerous other Sponsor Giveaway Gifts. Proceeds support SD Trailfit and Ultra Medics