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Heat Acclimatization Before a Summer Ultra: Why You Can't Just Hope for Cool Weather
The biggest summer ultras — Western States, Hardrock, Leadville, UTMB — send athletes through environments where heat is a primary physiological stressor, not a background variable. Arriving without deliberate heat preparation is a choice that shows up in the canyons, not on paper.
By ZealZag TeamWestern States 100: Four Days Out, Heat Strategy Becomes the Race
Four days from the 53rd Western States 100, the heat strategy conversation has taken over race week — 92°F canyon forecast holding, sauna protocols entering their final week, and the contender field arriving in Olympic Valley.
By ZealZag TeamRacing in Heat: How to Build Heat Tolerance Before Your Hot-Condition Triathlon
Heat is one of the most reliable performance limiters in triathlon — not a variable you manage on the day, but a physiological challenge that requires preparation in the weeks before a hot race. The adaptations from deliberate heat acclimatization are well-established and accessible to athletes at every level. This is what the process involves and what to expect from it.
By ZealZag Team