Date
September 13, 2026
Field Size
Small (<500)
PR Score
98.0 / 100
BQ Rate
21.4%
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Course profile rated 97.95 for flatness, ideal for speed.
21.4% of finishers achieve Boston Qualifying (BQ) times.
Small field size of 89 finishers enhances the race experience.
The event takes place along the picturesque Charles River, showcasing autumn colors.
With a PR Score of 97.95, this course is nearly pancake flat, making it a solid option for those eyeing a personal best. Runners will navigate a scenic route along the Charles River, which is especially beautiful in September as the leaves start to change. The small field of only 89 finishers fosters a tight-knit atmosphere, and you’ll likely find camaraderie among fellow competitors, all driven by a shared goal of Boston qualification.
Charles River Marathon Invitational carries a Medium qualifier likelihood — a solid BQ opportunity for well-prepared runners who arrive race-ready. Historically, around 21.4% of finishers have posted Boston-qualifying times here. The course profile rewards runners who execute a well-paced effort from the start.
To maximize BQ chances, focus on a consistent pace throughout, especially in the early miles. Utilize the flat terrain to maintain a steady rhythm and avoid burning out too early, leaving enough energy for a strong finish.
Detailed elevation profile data is being prepared for this race. Check back soon for interactive course analysis.
Typical conditions: Cool (40–60°F), ideal racing conditions. Fall conditions are typically the most reliable for marathon efforts, with cool mornings that hold through the finish for most runners.
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