Players who have participated in at least 2 MERS tournaments, are listed in the MERS. Players who do not comply with the requirements or regulations set by their national organization, will not enter the EMA ranking list.

A player with less than 5 tournaments is given a result of 0 (weight 1) for each missing tournament. Participation as non-playing official or referee is not rated.

Currently, there are 2 official EMA ranking lists: one for each official rule set: MCR and RCR (Riichi). The list for online ranking (MORSE) is updated more irregularly.