Pendio blogPractical articles on climbs, descents, pacing and race planning for trail runners.https://pendio.app/blogenTrail running calculators: what each one actually measureshttps://pendio.app/blog/trail-running-calculatorshttps://pendio.app/blog/trail-running-calculatorsGAP, flat-equivalent distance, energy cost, VAM and carbs per hour: what each trail running calculator measures, and why they disagree on descents.Fri, 16 Oct 2026 00:00:00 GMT