High-profile open water swim events demand a course that lets athletes perform without distraction. Sentenal sets and holds that course with swimmer safety built in — so race managers can focus on the event, not the buoys.
We understand the pressure on race organisers to deliver safe, fair, and memorable events. Sentenal's goal is seamless management for race teams — simplifying course setting and removing the stress of course management so organisers can focus entirely on the athletes and the quality of the racing.
Protected thrusters minimise the risk of contact, providing complete peace of mind throughout the event. Every mark is placed within two metres of the target, delivering a fair, reliable course that swimmers can trust.
One or two team members deploy Sentenals quickly from shore, dock, or RIB. Modular assembly means the fleet is ready in minutes.
Activate AutoNav and the fleet drives itself to pre-determined positions. Each mark holds station accurately, waiting for the next command.
As the only marks on the course, Sentenals provide total consistency. Reposition the full layout or individual marks as conditions change — in under two minutes.
Run back-to-back distances without tying up volunteer boats. Shift the course for the next wave while athletes recover on shore.
By reducing RIB usage, fuel costs, and volunteer time, Sentenal lowers operational demands while keeping navigation, power, and communications reliable.
Reposition the entire course or any single mark on demand. Tide shifted? Wind picked up? Move the layout in under two minutes without chasing buoys.
60+ hours of runtime on a single charge covers the full event without interruption. Stackable design makes storage and transport effortless between race days.
In Layout Mode, you build and manage swim courses directly on an interactive map. Assign Sentenals to roles, adjust course variables in real time, and maintain full, safe operation of the fleet on the water.
Sentenal offers flexible hire and sponsorship packages for swim events — from complimentary fleet hire with title sponsorship to official partner arrangements with onsite support. Tell us about your event and we'll tailor a package.
Book a live demo, or ask about event hire and sponsorship for your next open water swim.
Request a demo
Open water swimming