The following changes were made to the 2006 calendar of the Superbike & Supersport World Championships. The round scheduled in Valencia , Spain, will take place on April 23 (instead of 30). The round scheduled in Monza , Italy, will be held on May 7 (instead of 14). The rounds in Brands Hatch and Imola are confirmed. For its last round, the Championship will return to South Africa on October 22 (circuit to be announced). A Superstock 1000 FIM Cup round will take place at each round in Europe. February 25 - Qatar (No Superstock) March 5 - Phillip Island (No Superstock) April 23 - Valencia May 7 - Monza May 28 - Silverstone June 25 - Misano July 23 - Brno August 6 - Brands Hatch September 3 - Assen September 10 - Eurospeedway Lausitzring October 1 - Imola October 8 - Magny Cours October 22 - South Africa (No Superstock)