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Race to Stop the Clot® 2023 Fun Run

Fri October 13 - Mon October 16


Ready, set, go!

The National Blood Clot Alliance is celebrating our 4th annual Race to Stop the Clot® Fun Run in recognition of World Thrombosis Day!  

The Race to Stop the Clot® Fun Run is a virtual walk/run and fundraiser, with options to complete a 10K, 5K, or 1- mile course of your choosing anytime from October 13-16. Take your support one step further and sign up to help fundraise! All proceeds support the National Blood Clot Alliance (NBCA) and are 100% tax-deductible.   

Invite your friends to join you at the Race to Stop the Clot® 2023 Fun Run. If you get 5 friends to sign up using your special referral link given to you after your register, you will receive a refund of up to $20.00 as our thank you!

Registration Options:

  • 10K, 5K, and 1-Mile includes a digital race bib, digital finisher certificate, fun challenges and prizes for top fundraisers, and ways to connect with your fellow runners.
  • Receive a 20% family discount when you register 4+ people.
  • Add-On options for all registrants include the option to purchase a discounted custom race shirt at check-out or make an additional donation.
  • Complimentary race registration will be automatically applied to anyone who makes an additional donation of $100+ during check out.

When will I receive my race gear? Register by September 23 to receive your gear by October 13. For those that register after September 23, your gear will arrive within 3 weeks after the event.

Here’s how it works: 

  1. Register and consider fundraising to help support NBCA programs
  2. Run or walk your selected race distance any time between October 13 and October 16
  3. Report your race time on the results page 

How does my donation help? All donations benefit the National Blood Clot Alliance (NBCA), a 501(c)(3), non-profit, voluntary health organization dedicated to advancing the prevention, early diagnosis and successful treatment of life-threatening blood clots such as deep vein thrombosis and pulmonary embolism. NBCA is the only nonprofit organization in the United States focused singularly on building awareness and community among people who are affected by blood clots or at increased risk for blood clots, including people with clotting disorders, atrial fibrillation, cancer, traumatic injury, and risks related to hospitalization and surgery, lengthy immobility, childbirth, and hormonal birth control.


Race Contact Info

If you have any questions about this race, please contact the race director at

Race Gear

Race Swag


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