Most training apps were built for road runners and stop at the marathon. Ultrarunners stitch together PDFs, spreadsheets, and a GPX viewer that has no idea what 9,000ft of climb does to your pace. RunPact is built ultra-first: 3D flythrough of any GPX, terrain-adjusted pacing, and ML predictions trained on real ultras, adaptive plans you can fork, customize, and share — no $300/mo coach required, Strava + Intervals.icu sync, more on the way. €3/mo. 14-day trial, no card.
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