We will have 24 meets in 2010 spread over six classes for a total of 42 races. Six events will be 3-hour long-distance team races, the other 18 will run two classes per race meeting, each in shorter four-minute heats, for a total of 42 races. Note that in 2010, heat durations have been extended from three minutes to four.

To rank in each class - and in the Overall Championship - you need to race in roughly 1/3rd of possible class races and more than 2/3rds of them to be able to drop poor races.  Given 6 races in each class this means you have to race in 3 races to rank and can drop any races above 5 races in each class. In the Overall Championship you need 15 races to rank and can drop races after you reach 27. In addition to the 6 Class Championships and the Overall Championship there is also a 3hr Team Championship comprising the six 3-Hour races from each class.