14TH ANNUAL SNOWDROP ULTRA 55 HOUR
Wednesday, December 30, 2026 – Friday, January 01, 2027
Signup Begins in:
2026/04/01 12:00:00
Run, Walk or Crawl as many laps as you can in 55 hours!
Why We Snowdrop?
The driving force behind everything we do is the children. We’ve seen the impact a childhood cancer diagnosis has on the entire family and we’re deeply committed to ensuring children affected by a cancer diagnosis have the opportunity to pursue their college dreams with scholarships, regardless of financial challenges. We are painstakingly aware that childhood cancer research continues to be under funded so we continue our mission to help fund Research and Awareness. Our actions brings our WHY to life.
Why 55 Hours?
55 Hours is symbolic. On February, 2006, the young lady (15-year-old, Chelsey Campbell) who inspired and founded Snowdrop Foundation, had what is still a record setting surgery at Texas Children’s Cancer Center. Her surgery lasted 27 continuous hours. Through those 27 hours, there were 4 anesthesiologists and 4 shift changes of nurses. However, 1 primary surgeon and 1 assistant surgeon performed the operation in its entirety, without taking any breaks. This race recognizes the time it took the 2 surgeons who operated on 1 patient in order to save her life.
2 (surgeons) x 27 (hours) = 54 + 1 more hour for Chelsey = 55 Hours
Event Information
When
Tuesday, Dec 30, 2025 7am – Thursday, Jan. 1, 2025 2pm
Where
Buffalo Run Park, Missouri City, TX (1122 Buffalo Run Blvd, Missouri City,TX 77489)
Why
Benefits the Snowdrop Foundation
What
Snowdrop 55 Hour Ultra Race is for Solo Runners or Relay Teams of up to 10 runners
The Course
The course is a USATF Certified loop of .69045 miles on crushed granite and pavement
Runner's Guide
Here is the start of our comprehensive 2025 runner’s guide. More edits to come but here in contains all the information that you need to know about the race and more. What should I bring? What should I not bring? We got you covered!
Quick Links
Looking for info on how to donate or need to edit your address on your registration? We got you covered!!!
Questions?
Got any questions? Please contact one of our race directors.
steve@snowdropfoundation.org or jered@snowdropfoundation.org
- 2025 Live results here! – https://my.raceresult.com/376902/
- For more amazing numbers like these check out the Statististics and Results archive.
- Part of what makes this race great are the legacy runners that return year after year. It takes a lot of grit, determination and passion for the cause to keep coming back!
- Running 100+ miles is a huge accomplishment. Check out our Wall of Fame to see those that have accomplished this great feat at our race!
- Buckles are awarded for reaching 100, 150, 200, and 250 miles! How far are you going to go???
Our Sponsors
We couldn’t put on this race without these fine folks! Thank you all for supporting us through the years!
2025 – 2026 Sponsors
Store #5449 – Missouri City, TX
Store #2505 – Missouri City, TX
Store #2993 – Sugar Land, TX
Store #3296 – Houston, TX
Store #915 – Stafford, TX
Store #3302 – Houston, TX
Store #3827 – Richmond, TX
Store #772 – Houston, TX
Store #2066 – Houston, TX
Store #3584 – Houston, TX
Store #4466 – Sugar Land, TX
