The World SCRABBLE® Championship has been held every second year since 1991, sponsored either by Mattel Inc. or Hasbro.
Effective 2009, a formula has been established for determining sizes of national teams, replacing an older system which had been in place since 1997.
The following five players qualify for the WSC as wildcards: the current World Champion, the last losing WSC finalist, the WYSC Champion (if there has been more than one since the last WSC, the WYSC organisers must decide which one gets the wildcard), and two players from the WSC host country. In addition, the highest internationally rated player as of July 31st in the WSC year may be considered as a sixth wildcard, if he or she does not qualify otherwise.
Adjustments to national allocations are based on performance at the previous WSC as follows. Countries are ranked according to the average finishing rank of their players. (If a country has N players and W wildcards, the ranks of only N of the N+W players contribute to the average, choosing the N players whose pre-WSC WESPA tournament ratings are highest among the N+W, considering unrated players as rated lower than rated players, and breaking ties in favour of better-ranked players.) Among the countries represented by more than one player, the bottom half lose a player and the top half gain a player, except:
For example, in 2007 there were 23 countries represented by more than one player and one country (U.A.E.) represented by one player who finished in the top. half. The bottom 11 of the 23 lose a player, and the top 11-1=10 of the 23 gain a player, along with the U.A.E.
If a nation is not represented by its full quota, it does not participate in the adjustment, and neither gains nor loses places. If it does so for two consecutive years, it loses one player (unless it only had one), and the overall size of the event drops by one.
SCRABBLE® is a registered trademark of J.W. Spear & Sons Limited, Maidenhead SL6 4UB, England except in Canada and the United States, where it is a registered trademark of HASBRO. Used under license from Mattel Europa BV.
For more information about the event, please contact Philip Nelkon at firstname.lastname@example.org. For technical assistance with this web site, please contact John Chew at email@example.com.