Аннотация:DOI: 10.30888/2410-6615.2020-04-01ISSN 2410-6615The paper considers the ways to range progress of students in the distance education system Chess King. The basic idea is in using Elo rating system. The article offers a new formula that uses success percent for every exercise instead of solved/not solved values. Google Analytics cloud service is used for data storing and analysis. For the current moment Chess King range system was successfully tuned using data of hundreds thousands of students and successfully used.