Charles River Marathon
Charles River Marathon is a limited-field Boston fundraiser race built for qualifying attempts, with ten flat paved laps around Herter Park.
Next raceSunday, May 3, 2026
LocationBoston, Massachusetts
Boston qualifierYes
Charles River Marathon quick facts
- USATF-certified BQ-eligible course with certificate MA23005JK.
- Limited 200-runner field with a rolling fundraising-based entry process.
- Ten-loop course keeps aid, spectators, and pacing feedback close.
What is the Charles River Marathon?
The RACE Cancer Foundation's Charles River Marathon is a small, fundraising-based Boston race with a reputation for fast qualifier attempts.
Charles River Marathon course route
The marathon is ten laps of a flat paved loop around Herter Park and the Charles River, keeping logistics compact and splits predictable.
Weather for the Charles River Marathon
Early May in Boston is usually cool enough for fast running, though river wind and rain can change pacing plans quickly.
Past Charles River Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Sunday, May 3, 2026 | — | — |
Charles River Marathon FAQ
When is the Charles River Marathon?
The 2026 Charles River Marathon is on Sunday, May 3, 2026.
How do I register for the Charles River Marathon?
You can register for the Charles River Marathon at racecancer.org.