RATINGS BY-LAW

[Made 8 April 2004]

Division 1 - Rating System

Administration
1. The ACF Council shall appoint as many Ratings Officers as it considers 
necessary to administer the ACF Ratings System and to prepare the ACF rating 
lists.

ACF rating lists
2. (1) The Ratings Officers shall prepare rating lists as follows - 

(a) a normal list relating to games played at normal time controls;

(b) a Rapid rating list.

(2) A game will be rated in the Rapid list if it is played at a time control of 
between 15 and 59 minutes per player for the whole game.

(3) Games at longer time controls will be rated in the normal list.

(4) Games using increments in the time control will be accepted for rating -

(a) in the normal list provided they are of the form G/Xmins + Ysecs per move 
from move 1 where X and Y are 30 or greater or where X is 60 or greater; or

(b) in the Rapid list if they are of the form G/Xmins + Y secs per move where X 
is 15 to 29, irrespective of the value of Y, or where X is 30 to 59 and Y is 
less than 30.

Publication of ratings
3. The ACF rating lists are to be published four times per year, on 1 March, 1 
June, 1 September and 1 December.

Rating system - implementation
4. (1) Subject to this by-law, the ACF rating lists are to be prepared generally 
in accordance with the Glicko 2 system, described at Professor Glickman's web 
site at http://www.glicko.com.

(2) The Ratings Officers may implement the Glicko 2 system in the manner they 
deem most appropriate.

Adjustment of ratings
5. Without limiting the generality of by-law 4 (2), the Ratings Officers may 
adjust the ACF ratings as they see fit to try to bring the ACF ratings more in 
line with FIDE ratings, such an adjustment to be made, when determined 
necessary, before, or at the same time as, the publication of the first ACF 
rating list for each calendar year.

Rating of matches
6. (1) A match will be rated and, where applicable, submitted to FIDE for rating 
if - 

(a) the match is approved for rating by the State Associations of the players 
concerned; and

(b) the match is for a legitimate title play-off.

(2) Despite paragraph (1) a match will be rated if it is authorized by the ACF 
Council, in its absolute discretion, to be rated.

Submission of games for rating
7. Where possible, information regarding games submitted for rating should be 
provided using the Swiss Perfect system.

Rating of certain telechess games
8. If the captains in a telechess match, played in accordance with the ACF Rules 
for Telechess Matches, determine the result of an unfinished game for scoring 
purposes, the result of the game shall not be rated unless the players agree 
that it be rated.

Division 2 - Transitional
Ratings officers - preservation of appointments
9. The Ratings Officers holding appointment at the commencement of this By-law 
shall continue to hold office as if appointed under this by-law. 

ACF ratings - preservation
10. The ACF ratings in force at the commencent of this by-law shall continue in 
force as if made under this by-law.