SBR Marathon games disqualification criteria has been modified (simplified) to avoid long play in case the game is abandoned or some players have lost connection:
Players who has no "Verified User" status are adviced to fill their profiles, please refer to Site Guide.03.04.2022
To enforce "healthy" competition and to address disconnected players issue the following criteria for SBR Marathon games disqualification will be applied (all the measurements are in "automoves", AM, that is the moves which are made by the system due to player's disconnection):
When one or more players are obviously disconnected in early stage of the game, it is adviced to "abandon" such a game (it will be disqualified).
SBR Marathon table:
To enforce "healthy" competition and avoid "choosing opponents" approach the following changes are implemented:
MahjongSoft is pleased to announce Annual SBR Marathon, a long-term open tournament, which starts on 01.03.2022 at 00:00 and ends on 28.02.2023 23:59 (by Moscow time).
Marathon is opened to all players, with no restrictions with respect to participation, or the number of accounted games.
Annual SBR Marathon is composed of four periods, which are called as "seasons":
All games played by a player within a period are then consolidated using four-component formula to get player's score. All player's scores are then ranked accordingly to get rank (place) and basic rank for the considered period.
The player's annual result is a sum of basic rank values taken from each of four periods.
Comment: for details on formulas and ranking procedures please refer to SBR Marathon Information page.
Annual SBR Marathon:
To enter SBR Marathon, please, enter the table marked "SBR Marathon" on the starting page. The table of results is available at Consolidated Marathon Results page (please, choose the rules and period in a drop-down menu accordingly).
Deals per session: 8, Time for session: 30 min., Time for own action: 9 sec., Time for declaration: 8 sec., Additional time: 10 sec., Time for results: 10 sec.
Marathon is a long-term open tournament, usually played by periods. Marathon is opened to all players, with no restrictions with respect to participation, or the number of accounted within a period games.
The player's score within a period is a weighted sum of four components: 50%*average_TP (taken for all games) + 50%*average_TP (taken for best 10 by TP games) + 1%*number_of_games + 10%*average_TP_opponents (against whom player played).
Comment: TP stands for total_points, the sum of game_points and bonus_points, which players receives from each game played.
To be rated, 10 games have to be played by the player within a period. While determining the player's score, all missing to the amount of 10 games will forceably be counted as having 0 TP.
For the sake of simplicity, all the components are rounded to the two digits after decimal point. For tied results number_of_games is used as an additional criterion — the lesser is that number, the higher player's score is.
All players' scores within the same period are then ranked (including breaking-ties algorithms). Each player, who played the established within a period minimum number of games (10), is called as "qualified player". Each "qualified player" receives so-called "Basic Rank" (BR) according to the formula:
BR = 1000*(number_of_qualified_players-player's_place+1)/number_of_qualified_players, rounded to the closest integer number
All players who have not played within a considered period the established minimum number of games (10), receive BR=0.
In "Annual Marathon" all the "Basic Rank" (BR) values, received in individual periods, are summed up to obtain "annual" player's result.
To enforce "healthy" competition any game with seemingly unequal opportunities to compete should not be counted (disqualified). Thus, any games having "excessive" number of "automoves" (that is moves when system plays instead of disconnected player) should be disqualified. For exact criteria of such disqualification, please refer to SBR Marathon Games Disqualification Criteria.
Disqualified SBR Marathon games: