The upcoming Clashot race will be a little different in that it will be a lapped race, instead of a standard 20 minute endurance. So each heat will be first to 40 laps (or 20mins, whichever comes first). When the first boat in class completes the 40 laps, the boom will sound and each competitor in class must then complete the lap they are on.

Calshot is generally a large course with laps in the 20-25 second region so expect 15-20mins anyway.

If there are mixed classes the timing system can separate them. So if there is a D class boat running within an E class race, that boat must continue after the E boat race has finished.