Chess scoring explained

In chess, by far the most common scoring system is 1 point for a win, ½ for a draw, and 0 for a loss.

A number of different notations are used to denote a player's score in a match or tournament, or their long-term record against a particular opponent. The most common are:

style=min-width:6emFormatMeaningExample
A/BPoints scored (A) out of games played (B)"... Fabiano Caruana, is second, with 7.5/11."[1]
A−BPoints for (A) − points against (B)"Fischer won the tournament... with a score of 18½−4½".[2] The games played is the sum of the "for" and "against" scores, so in this case, Fischer scored 18½ points from 23 games played.
+W −L =DW wins, L losses, D draws"Fischer 6.5/9 (+5 −1 =3)", meaning Fischer scored 5 wins, 1 loss and 3 draws for a total of 6.5 points out of 9.[3]
+A or −ANumber of wins minus number of losses"Fabiano came into the final round on an unbeaten +4".[4] This refers to Caruana scoring 7 points in the first 10 rounds of the FIDE Grand Swiss Tournament 2021, which meant 3 points were scored against him, and 7 minus 3 is equal to +4.

Less common systems

Notes and References

  1. https://www.fide.com/news/1425 FIDE Chess.com Grand Swiss: Firouzja and Lei triumph in Riga
  2. "From Morphy to Fischer", Israel Horowitz, Batsford, 1973
  3. https://www.chessgames.com/perl/chess.pl?tid=79446 Fischer – Petrosian Candidates Final Match
  4. https://chess24.com/en/read/news/firouzja-wins-grand-swiss-caruana-in-candidates Firouzja wins Grand Swiss | Caruana in Candidates