Run Long Run Healthy Less Running = Faster Marathons, per new Boston Marathon Study
Sep 22, 2025
Discover surprising insights from a recent study on marathon training that suggests fewer runs can lead to faster marathon times. The discussion includes the benefits of a structured training cycle, revealing how an eight-month base phase can predict performance. It also highlights the role of quality runs and cross-training, particularly in the lead-up to race day. With practical takeaways for runners, the episode emphasizes sustained mileage while encouraging a strategic taper. Dive into the paradox of training frequency and marathon success!
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Who Answered The Survey
- The survey reached 917 respondents out of ~25,000 Boston entrants, roughly 4% of the field.
- The typical respondent had nine years of marathon training and about 16 marathons completed.
Base Phase Volume Strongly Predicts Performance
- In the eight-month base (macro) phase, higher training exposure consistently linked to faster marathon times.
- Running over 10 hours weekly, extra runs, and more speed sessions all predicted meaningful time improvements.
Build Volume Gradually During Base
- Add weekly running time and quality sessions during base building to improve marathon prospects.
- Small weekly mileage increases (even +1 km) can yield measurable time gains.