Costume and theme · Phoenixville, PA
Blobfest 5K, 10K & Half Marathon is a costume and theme run in Phoenixville, Pennsylvania, with no upcoming dates listed.
Season completedFamily friendlyCostumes encouraged
- When
- Last held Sun, July 12, 2026; next date TBA
Start Half 7:00 AM; kids 7:30 AM; 5K 7:45 AM; 10K 8:00 AM
Sunday of Blobfest weekend in July - Where
- Colonial Theatre
227 Bridge Street
Phoenixville, PA 19460 · Chester
Directions - Entry
- Register
- Organized by
- The RUNegades
9th annual (2026)
What to expect
2026 Season completed
Sunday, July 12, 2026
- Sun, July 12, 2026
2027 Projected
Date TBA
About the run
Groups compete to decorate stretches of the course with 'Blobs or Monsters' scenes, and finishers get a Blob-themed medal; part of the proceeds go to the Colonial Theatre. The 2026 race sold out and used a waitlist for the first time.
The run
- Distances
- 5K, 10K, Half marathon, 800m kids fun run
- Occasion
- Blobfest
- Season
- Summer
- Swag
- Blob-themed finisher medal
- Benefits
- The Colonial Theatre
Nearby
- Beer & Bagel Off-Road Race Series - PennsylvaniaPhoenixville, PA
- Funky Santa 5KPottstown, PA
- Tuesdays in the Park Ice Cream 5K & Kids Fun RunPottstown, PA
- Ready, Set, GLOW! 5K Run & WalkHoney Brook, PA
- Citizens Bank Park Spartan StadionPhiladelphia, PA
- Independence Blue Cross Broad Street RunPhiladelphia, PA
Sources
- Official site official
- RunSignup events (course decorating competition) official
- Colonial Theatre event page official
Details checked against the race’s own pages on Sun, Oct 4, 2026.