Highest score in a Scrabble tournament
Mark Landsberg, Toh Weibin
850 point(s)
United Kingdom (Belfast)

The highest score ever recorded in a Scrabble tournament is 850, achieved by Toh Weibin (Singapore) at the Northern Ireland Scrabble Championship in Belfast, UK, on 21 January 2012. The tournament was officially sanctioned by the WESPA (World English-language Scrabble Players Association) and used the international-standard Collins Scrabble Wordlist (CSW). The highest score set in the USA, where tournaments are sanctioned by the North American Scrabble Players Association (NASPA) and use the Official Tournament and Club Word List (OTCWL), is 770. It was achieved on 13 June 1993 by Mark Landsberg (USA) at a tournament in Eagle Rock, California.

The highest-scoring word set down by Weibin during his record-setting game was BEAUXITE, which won him a whopping 275 points on its own. The word is an archaic, but still valid, spelling of Bauxite, the name of a type of aluminium ore.