The ITU publishes and maintains the World Rankings for the men's and women's competitions in both short and long course for triathlon and duathlon as well as aquathlon and winter triathlon races it also has a ranking for the national teams mixed relay.[11] Each ranking has a slightly different point system but all are calculated via a rolling calendar, by taking a set number of the highest scoring results from the previous 52 weeks and adding them to a set number of the highest scoring results from the 53 to 104 weeks previous. Each races maximum score is decided by the ITU's ranking criteria[12] and then the athlete who comes first will earn that many points with each following athlete earning 7.5% less point than the athlete before them.