This is through the IWSF (International waterski Federation) - which USAWaterski is under. They have separate events for sking and wakeboarding. Don't confuse this with World Cup that is the WWA and is in the Philippines, Wakestock, Malibu Open, Japan, Nationals and Worlds and has nothing to do with the Pro Wakeboard Tour or King of Wake which all have some events that count for all 3 but none count toward the World Cup except those which are sanctioned by the IWSF. Pretty straight forward stuff
WWA-
Pro Tour 5 stops and has its own winner. These 5 count toward King of Wake
King of Wake- The 5 PWT stops plus Pro Am, Wake Games, Nationals and World.
World Cup-PI, Wakestock, Malibu Open, Japan, Nationals (I think and Worlds).
IWSF/USAWaterski
World Series- Multiple ski and wakeboard events
USAWaterski-
Pan Am, Board Up Miami, US Masters.
Also a National Wakeboard League
INT
SInce we are totally confused lets throw in the INT which has wake and and knee and wakeskate.
Cable-
both the WWA and the IWSF have a world competition and a series.
Thank goodness wakeboarding is so big other wise this fragmented arrangement could really hurt trying to sponsor events.