Maryland · 12 Mile · 2-Person Relay

Altra Charles Street 12

Altra Charles Street 12 is a 12 Mile and 2-Person Relay event held in Towson, Maryland. Its next confirmed date is Saturday, September 4, 2027. About 3,000 runners take part across all distances.

Race day
September 4, 2027
Location
Towson, MD
Field size
~3,000 runners

Race details

Date
Saturday, September 4, 2027
Location
Towson, Maryland
Distances
12 Mile, 2-Person Relay
Field size
About 3,000 runners
Course
Net downhill with rolling hills, ~350 ft gain
Registration
runsignup.com
Official website
charlesst12.com

Registration, course & weather

Start time
7:30 AM EDT
Course profile
Point-to-point course; Road surface

About the Altra Charles Street 12

A point-to-point 12-mile race down Baltimore's historic Charles Street from Towson through downtown Baltimore, also offered as a two-person relay. Its predominantly downhill profile makes it a local favorite for personal bests.

Rankings and notes

Rankings and awards
Maryland's signature 12-mile distance race; net-downhill course popular for fast times; Charm City Run signature event

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Altra Charles Street 12: common questions

When is the Altra Charles Street 12?
The next confirmed date is Saturday, September 4, 2027.
Where is the Altra Charles Street 12 held?
In Towson, Maryland.
What distances does the Altra Charles Street 12 offer?
12 Mile and 2-Person Relay.
How many people run the Altra Charles Street 12?
About 3,000 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
How do I register for the Altra Charles Street 12?
Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
Is registration open for the Altra Charles Street 12?
Registration status as last checked October 2, 2026: not announced.
What time does the Altra Charles Street 12 start?
7:30 AM EDT.
What is the course like at the Altra Charles Street 12?
Point-to-point course; Road surface.