Observed arrival · 2026-08-31
Vertical Fuel Counts the Climbing
A free trail-running fuelling calculator that turns climb, time, temperature, and body weight into an hour-by-hour race plan.
Field notes
The calculator combines expected time on feet, ascent, distance, body weight, temperature, and fuelling experience before laying consumption moments across a race timeline. It can translate hourly targets into concrete quantities such as gels, bars, chews, salt capsules, and scoops. A visible backyard mode accounts for the special logistics of returning to camp each loop, using a stated 6.706 km yard and an hourly bell. The page also links its methodology to multiple research papers.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue