SM
Mar 1, 2026
Full Marathon
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100,000 Reasons Challenge: A Movement to Stop the Clot
Join the 100,000 Reasons Challenge and be part of a national movement to honor the 100,000 lives lost to blood clots each year. Every year, blood clots claim 100,000 lives—but together, we can change that. During this 31-day challenge in March, Blood Clot Awareness Month, you’ll move your body your way—run, walk, ride, or roll—while helping raise awareness and funds to prevent future tragedies. Your participation ...
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Source: RunSignup
Updated today
Official registration linked
Race facts
Core planning details from the race record.
- Race date
- Sunday, Mar 1, 2026
- Location
- Pennsylvania, United States
- Distance
- Full Marathon
- Price
- Price not published
- Registration
- Official registration linked
- Organizer
- Organizer not listed
Distances
Full marathon
Planning timeline
- Registration opens
- Not published
- Registration closes
- Not published
- Race day
- Sunday, Mar 1, 2026
Not sure this race fits your season?
The race page stays free. Membership is the support layer for runners who want help deciding, training, and staying accountable once a race starts to matter.
- Before you register Talk through course fit, travel friction, timing, and whether this race belongs in your year.
- After you commit Use club rhythm to keep the training block moving after the exciting first week.
- When plans change Get a practical place to rethink the goal instead of dropping the plan silently.