2025 Altra B3 Distance Series presented by Kelly Benefits
The Altra Charles Street 12 presented by Kelly Benefits is the 3rd race in the Altra B3 Distance Series presented by Kelly Benefits! B3 is a collection of three of Baltimore's premier running events:
- Altra Kelly Benefits St. Patrick's Day Shamrock 5k
- Altra Sole of the City 10k presented by Kelly Benefits
- Altra Charles Street 12 & 2-Person Relay presented by Kelly Benefits
B3 Distance Series registrants receive the following:
- Entry into all 3 B3 Distance Series Races
- The 2025 B3 Distance Series Finisher Medal
- Commemorative B3 Distance Series Loyalty Pin for those who have participated in the B3 series before
