Backyard
Backyard helps runners manage fixed-time loop races from their watch. It tracks each loop, shows the live metrics that matter, keeps the official schedule running through recovery, and alerts you when it is time to prepare and start again.
Apps
Roxya
Roxya is a free Garmin app for HYROX training and race day: ten ready-made sessions, up to twenty of your own built on the watch, a live screen for every station, and race day against your own plan, with your workouts, settings, and history kept on the watch.