Event: Broadland Club Swiss

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Opponent Rating Result
Mervyn J Hughes 1882 0 - 1
Aaron Hodgson 1529 1 - 0(def)
Martin Griffin 1493 0 - 1
Chris Cook 1398 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1458 = (4773 + 400 * (1 - 2)) / 3)

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