Run your #MammothHalf from anywhere…and anytime in 2020!


Register for the 2020 Mammoth Half Marathon as a virtual runner in our new Epic Run Store!

 As a virtual runner, you won’t miss out on amazing perks to keep you motivated during your training runs.  Your bib, shirt, and medal will be mailed directly to your domestic address on file. You can also opt to Take the Challenge and run it in the same calendar year as the Virtual San Diego Half Marathon, so you can earn even more awesome bling to add to your collection: the San Diego-Mammoth Challenge Spinner Medal! While we will definitely miss seeing you in person, we want to reward your half marathon accomplishments anytime you are able to get them done.  <Virtual hi fives all around!> #mammothhalf


  1. Register for the “Virtual Mammoth Half Marathon” using the Register Now button. You can also add a “Virtual San Diego Half Marathon” now or at a later time if you decide to Take the San Diego-Mammoth Challenge. Shipping & handling will be added at checkout.
  2. Choose a day on your calendar to run your 13.1 miles. You can choose any time, any pace and any route that works for you.
  3. Create and follow a customized training plan (or download one from our half marathon page), making any adjustments according to your race day and personal goals.
  4. On your race day, you have the option to record your run and snap a photo of the summary screen on your phone, smartwatch, activity tracker or treadmill.
  5. Congratulations and well done, Virtual Runner! Feel free share your photo with our members-only Mammoth Facebook Group.
  6. Check the mail for your bib, official shirt, and finisher medal. We began mailings in July and will continuously send packets as we receive orders until the close of registration on December 31st, 2020. Most orders will ship within 48 hours!
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