Q: How does the Belt Ranks System work for the mahjong versions available on your site? Is it the same for all versions?
A: The Belt Ranks System does not work similarly for all the versions. Hong Kong, Mahjong Competition Rules and American share the same belt rating, whereas Riichi Competition, European Classical and Taiwanese versions have different ratings.
|Belt||Hong Kong/Competition Rules/ American||Riichi||European||Taiwanese|
|One green stripe on white belt||1-4.99||120-599.99||2-9.99||0.2-0.99|
|Two green stripes on white belt||5-9.99||600-1199.99||10-19.99||1-1.99|
|One brown stripe on green belt||25-49.99||3000-5999.99||50-99.99||5-9.99|
|Two brown stripes on green belt||50-74.99||6000-8999.99||100-149.99||10-14.99|
|One black stripe on brown belt||100-149.99||12000-17999.99||200-299.99||20-29.99|
|Two black stripes on brown belt||150-199.99||18000-23999.99||300-399.99||30-39.99|
The ratings in all styles of Mahjong are calculated according to our formula which is based on Official International rules:
- NewRating= OldRating +( (Score*4 + Difficulty –OldRating)/41 ) /4
*The Difficulty is the average of all the participating players' ratings.