Live telemetry for group events

Every participant on one screen.

Marshal streams heart rate, position and pace from each participant's own Garmin watch or bike computer to a single control-room view — so you know where everyone is, and who has gone quiet. Running, cycling, trail, skiing, hiking or any activity their watch can record.

Watch the live demo Read the setup guide

Rides inside their normal activity

A Connect IQ data field, not a separate app. Participants start the activity they always use — run, ride, ski, hike — and keep their own screens, navigation and recording.

Silence is visible

Every device shows the age of its last confirmed report. Go quiet and you turn amber, then red — because a dashboard that cannot tell you it has lost someone is worse than none.

Nothing to install for the operator

The control room is a web page. Sign in, enter the event token, and the field appears on a live map.

What you will see

Every screen below is the live demo event, photographed while it was running. It is the dashboard you get, and you can open the same one right now — no account, nothing to install.

The Marshal dashboard: ten riders as green dots along a road loop near Howick, with a list beside the map showing each rider's heart rate, speed, distance and altitude.
Everyone on one screen. Each device is a dot on the map and a card in the list, carrying whatever its sensors actually report — heart rate, pace, distance, power, cadence, altitude. The time beside each name is how long since that device was last heard from, and it is the number that matters most: green under 75 seconds, amber to three minutes, then red. A dashboard that cannot tell you it has lost someone is worse than no dashboard.
The same dashboard with one rider drawn as a green triangle instead of a dot, an alert reading Ingrid W, off course, 420 metres, over the map, and a violet 1 off route count in the header.
And who has left the route. Upload your course as a GPX and it is drawn behind the field. Anyone more than 100 m off it becomes a triangle rather than a dot and is named in an alert over the map — while the colour still tells you whether they are reporting, so a rider who is both off course and going quiet reads as exactly that.
The off-course log listing three excursions: the first marked STILL OFF in amber, the two below it closed, each with the time the rider left the route, the time they rejoined, and how far off they got.
With a record of it afterwards. Every excursion is logged: who, when they left, when they rejoined, and how far out they got. Click one and the map shows you exactly where it happened. Someone who has not come back yet stays open and marked, because "still out there" and "came back twenty minutes ago" are not the same thing and must never look alike. The log is read from the recorded track rather than written down as it happens, so an excursion nobody had a dashboard open for is still there when you go looking.
Marshal on a phone: a full-screen map of the route with ten riders on it, and the rider list as a pull-up sheet at the bottom.
From a phone at the start line. The map goes full screen and the list becomes a sheet you pull up. Names thin out when the field bunches, so the map stays readable — except for anyone off course, who keeps theirs.

How it works

  1. Participants add Marshal to a data screen on their Garmin watch or Edge bike computer, and enter the event token.
  2. The watch reports every 60 seconds, relayed over Bluetooth by their phone.
  3. You watch the event unfold on the map, with live vitals per device and clear staleness warnings.

Coming from Garmin's built-in group features? How Marshal compares to GroupTrack and GroupRide

Marshal is a situational-awareness tool for organised group activities. It is not a safety or emergency system, and should not be relied on where a failure to report could put someone at risk.