Kliva turns any of 31,000+ trail and ultra races into a race-day plan: pacing per segment on the real terrain, fueling with the actual gels and drink mixes you carry, caffeine and sodium dosed to your body, and a cutoff margin at every aid station. Then it syncs the plan to your Garmin as a free Connect IQ data field: aid stations, cutoffs and fuel reminders on your wrist, updated over the air. Plus a printable roadbook, a crew sheet link, FIT and CSV export. Free, in five languages.