Running Guides

Free, science-backed guides for marathon runners and spectators. Everything from fueling and pacing to gear, mental strategy, and race morning logistics — all backed by peer-reviewed research.

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Get a plan built for your specific race

These guides are universal — they work for any race. A racecast.io premium dossier takes everything above and personalizes it for your specific race: terrain-adjusted splits from your course GeoJSON, weather penalties from race-day hourly forecasts, fueling timeline with your brand and body weight, gear recommendations for actual conditions, and a printable pace band.

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