Revision as of 11:52, 9 July 2009

Since July 2009, this web site has featured tournament results for all sanctioned tournaments. They are filed according to the month in which their results were entered into the rating system: if a tournament is held late in a month and the results are not submitted propmptly, they may be registered in the following month.

Tournament results are available in two formats on this web site, both known as cross-tables; they are also copied from this web site with a slight delay and made available on our partner web site Cross-Tables.com with more detailed statistics. The cross-tables on this site are available in an older format, suitable for compact viewing on a low-bandwidth connection; and a newer format with pictures, suitable for faster connections.

Recent Results

Results before 2009-07 are available courtesy of the NSA.

2009

Jan Feb Mar Apr May Jun Jul

Newer Cross-Tables

The newer cross-tables feature the following information:

Rank

A player’s rank at the tournament, based on their wins, losses and spread. May be incorrect if a director has submitted bye-related data in a deprecated format.

Name

A player’s name as it appears in the ratings list.

W-L

A player’s record of wins and losses. Byes count as wins, forfeits as losses, and ties as half-win/half-losses.

Spread

The difference between the number of points a player scores and the number of points scored by all of the opponents.

Old

A player’s pretournament rating.

Perf

A player’s performance rating, representing the player’s strength counting only this event.

New

A player’s post-tournament rating.

+/−

The difference between the player’s pretournament and post-tournament ratings.

Traditional Rating

A player’s rating computed using the original normal expectation curve.

2008 Revised Rating

A player’s rating computed using the new logistic expectation curve, introduced by the NSA at the beginning of October 2008.

Rating

A player’s rating according to the rating system in effect for this tournament. If more than one pair of columns is given, this event was split-rated because of its length.

Round-by-Round Results

A player’s list of opponents, with photos where available (hover mouse over photo for name), one of WLTB (win, loss, tie or bye), opponent rank, player score and opponent score.

Older Cross-Tables

The older cross-tables feature the following information:

NAME

A player’s name as listed in the rating list

OLD RATING

A player’s rating before this tournament segment

NEW RATING

A player’s rating after this tournament segment

PERF RATING

A player’s performance rating during this tournament segment. I.e., the old rating that they would have had to have had for it to have remained unchanged as their new rating.

RESULTS

A player’s win-loss record, showing whether they had a win (W), tie (T), loss (L) or forfeit/bye (B), and the number of their opponent that round.

WINS

A player’s number of wins. Half wins may be displayed using a ‘+’ sign.

SPR

The number of points by which a player has outscored all of his or her opponents.

Tournaments longer than 16 rounds are rated in two approximately equal segments. Tournaments longer than 36 rounds are rated in three approximately equal segments. If the segments must be of unequal size, then earlier segments are assigned extra rounds. Older cross-tables have one segment per cross-table. Newer cross-tables have one tournament per cross-table, regardless of how many segments the tournament may have had.

Printing

Cross-tables are large, and usually print better in landscape orientation, reduced to less than 100% of nominal size.