RTK race tracking for dinghies

Centimetre racing.
Dinghy price.

One small, floating puck per sailor. Live on the map over 4G. Exact starts, exact finishes, full replay — for €149, not €1,000+.

Join the 2027 pilot Meet the puck

Live: Every boat over 4G
Starts: Who was over, by how much
10 Hz: Centimetre-level RTK
Replay: Every leg, every finish

One puck. One price.

Small enough for an Optimist. Precise enough for a start line.

A waterproof puck that floats if it goes over the side. Each sailor buys their own, charges it at home and brings it to every race.

VMGline RTK — centimetre-level RTK, L1+L5 GNSS, 10 Hz, heading and heel sensor
Live position to the map over 4G — no local network to rig
Heading, heel and bow position at the start

See pricing Compare models

The VMGline tracker puck — Prototype · in testing

Starts, finishes, replay

No more guessing at the gun

See exactly who was over early and how far each boat was from the line. Finishes in order, to the boat length. Then replay the whole race.

Organisers, coaches and families ashore follow every boat live
Distance to the line for every boat at the gun
Full replay of every leg after the race

Start view · illustration Live

Over early flagged at the gun

Line distance per boat

Club base station

Plug it in. RTK for the whole fleet.

The club owns one plug-and-play RTK base station. It sends corrections over the internet to every RTK puck on the water. No radio licence. No SWEPOS subscription.

Club plugs in the base

Mount it once at the club, connect power and internet. Done for the season.

Sailors bring their pucks

Each sailor owns and charges their own tracker. Nothing to hand out or collect.

Organiser enables tracking

One switch for the event. Every registered puck shows up on the map.

Race, follow, replay

Live over 4G during the race. Starts, finishes and replay after.

Zero work for the race office. No rental desk, no device handout, no setup crew. Organisers just enable tracking for the event.

Compare

A fraction of the price per boat

Tracking that every sailor in the fleet can afford — not just the top of the results list.

	VMGline RTK	Vakaros Atlas 2	RaceSense
Price per boat	€149 + subscription	€1,149	about $1,249
Live data link	4G to the map	Own local network	Own local network
Positioning	Centimetre-level RTK	—	—
GNSS	L1 + L5	—	—
Update rate	10 Hz	—	—
Sensors	Heading & heel	—	—
Waterproof & floats	Yes	—	—

Competitor prices are list prices per boat. We compare price and network only; — means not compared here. VMGline accuracy figures are targets until on-water tests are done.

Pricing

One puck, one price

Sailors buy the tracker. Clubs own the base station. Everyone sees the same live map.

RTK

VMGline RTK

€149 + subscription

Centimetre-level RTK, L1+L5 GNSS
10 Hz, heading and heel sensor
Exact starts and finishes
Live over 4G, full replay

Clubs

RTK base station

Pilot 2027

Plug and play, owned by the club
Corrections over the internet
No radio licence, no SWEPOS subscription
Organisers just enable tracking

FAQ

Straight answers

Why only RTK?

Centimetre-level RTK costs only a little more to build than plain GPS, and at ~1.5 m a GPS track can't tell you who was over the line. So every puck is RTK: exact starts, finishes, heading and heel, at 10 Hz.

Does the RTK model need the club base station?

For centimetre-level positioning, yes. The club's base station sends corrections over the internet. No radio licence and no SWEPOS subscription needed.

What does the race office have to do?

Enable tracking for the event. Sailors bring and charge their own pucks — nothing to hand out or collect.

Is it available now?

Not yet. Prototypes are in testing. Accuracy figures are targets until on-water tests are done. Clubs can join the 2027 pilot.

Where is the data stored?

The platform is built in Sweden with EU-based storage planned. Personal data can be exported and deleted on request under GDPR.