Moscow’s round of the 2015 World Superbike Championship has been removed from the calendar after promoters YMS failed to provide contract guarantees.

The schedule is now a 13-round affair as the Russian event will not be replaced by another race.

A statement from WSBK reads: “The Russian event promoter, YMS Promotion, has not provided the required contract guarantees defined by DWO to confirm and implement the event organisation.

“The Round will not be replaced and the 2015 WSBK Calendar will consist of the 13 confirmed events as included in the enclosed document.”