Event: Division One

Opponent Rating Result
Roger Betts 1893 ½ - ½
Nigel D Smith 1940 ½ - ½
Remi GJ Tailleux 2061 0 - 1
Roger D de Coverly 1982 0 - 1
James N Stayt 1910 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1877 = (9786 + 400 * (1 - 2)) / 5)

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