Event: Broadland Club Swiss

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Opponent Rating Result
Roy Hughes 2053 0 - 1
Chris Cook 1398 0 - 1
Heather Enid Walker 1187 1 - 0
Martin Griffin 1494 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1433 = (6132 + 400 * (1 - 2)) / 4)

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