The 21.5K
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The 21.5K
The inaugural 21.5K is an event in Philadelphia that offers both an in-person race and a virtual option. The in-person course begins and finishes in North Philly near 900 W Hunting Park Ave and routes runners through neighborhoods and local landmarks before returning to the start area. The event is scheduled for May 31, 2026 and is positioned on the final Sunday of May.
Participation is limited to 215 runners and at least 35 volunteers, with a combined participation goal of 250 people. The organizer describes the course as an open streets route. Pace groups will operate to help keep runners together, and participants are expected to follow all traffic laws and signals and to remain aware of their surroundings.
Registration is listed as free for the events. The program includes a virtual option described as an on your own type entry; the in-person distance is slightly longer than a standard half marathon.
Distances:
- 13.3 miles in-person race
- 21.5K virtual option
The description focuses on event format, location, participant limits, course type, and safety expectations rather than competitive details or awards. Visit the organization's website for the most recent information.