NavRun is a training and race-day platform built by an ultramarathoner for people taking on trail ultras, from 50Ks to 100-mile races. It helps runners prepare using their actual running history rather than generic plans or outdated fitness estimates. By connecting Strava or a watch, users can sync activity and receive training plans based on their recent four weeks of running, with race-specific preparation that can include long runs, elevation, and time on feet.

NavRun also offers tools for race planning and pacing. Runners can estimate finish times from a previous race, review aid-station cutoffs, and see projected arrival times and time buffers for different pacing scenarios. For race day, a shareable link lets crews view expected aid-station arrivals and communicate with the runner through voice messages that are delivered when the phone finds a signal. Crew sheets help supporters plan where and when to meet. NavRun provides free tools and describes its service as free for ultrarunners, with access through its website and an iOS app.